LT1037ACP

LT1007, LT1007A, LT1037, LT1037A LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS SLOS017C – D3195, FEBRUARY 1989 – REVISED JANUARY 1993 • • • DW PACKAGE (TOP VIEW) Maximum Equivalent Input Noise Voltage: 3.8 nV/√Hz at 1 kHz 4.5 nV/√Hz at 10 Hz Low Peak-to-Peak Equivalent Input Noise Voltage: 60 nV Typ From 0.1 Hz to 10 Hz Slew Rate (LT1037 and LT1037A): 11 V/µs Min NC NC VIO TRIM IN – IN + VCC – NC NC LT1007A and LT1037A Specifications: • • • • High Voltage Amplification: 7 V/µV Min, RL = 2 kΩ 3 V/ µV Min, RL = 600 Ω Low Input Offset Voltage: 25 µV Max Low Input Offset Voltage Temperature Coefficient: 0.6 µV/°C Max Common-Mode Rejection Ratio: 117 dB Min 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 NC NC VIO TRIM VCC+ OUT NC NC NC JG OR P PACKAGE (TOP VIEW) VIO TRIM IN – IN + VCC – description 1 8 2 7 3 6 4 5 VIO TRIM VCC + OUT NC NC – No internal connection These monolithic operational amplifiers feature extremely low-noise performance and out standing precision and speed specifications.The typical differential voltage amplification (at TA = 25°C) of these devices is an extremely high 20 V/µV driving a 2-kΩ load to ± 12 V and 12 V/ µV driving, a 600 -Ω load to ± 10V. In the design, processing, and testing of the device, particular attention has been paid to the optimization of the entire distribution of several key parameters. Consequently, the specifications of even the lowest-cost grades (the LT1007C and the LT1037C) have been greatly improved compared to equivalent grades of competing amplifiers. AVAILABLE OPTIONS TA 0°C to 70°C 70 C C – 55°C to 125°C 125 C VIO max AT 25°C PACKAGE SMALL-OUTLINE (DW) CERAMIC DIP (JG) PLASTIC DIP (P) 60 µV LT1007CDW — LT1007CP 25 µV — — LT1007ACP 60 µV LT1037CDW — LT1037CP 25 µV — — LT1037ACP 60 µV — LT1007MJG LT1007MP 25 µV — LT1007AMJG LT1007AMP 60 µV — LT1037MJG LT1037MP 25 µV — LT1037AMJG LT1037AMP The DW packages are available taped and reeled. Add the suffix R to the device type, (e.g.,LT1007CDWR). Copyright  1993, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 VIO TRIM VCC + 450 A 3.4 kΩ Q3 3.4 kΩ Q4 Q8 Q28 1.2 kΩ 130 pF 17 kΩ 240 µA 750 µA Q7 1.2 kΩ 17 kΩ Q27 Q18 – Q5 C1 Q9 20 Ω Q17 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 Q6 Q19 Q10 Q26 750 Ω Q20 Q1B Q25 – IN + Q1A Q2B OUT 200 Ω Q2A 20 Ω Q13 80 pF 20 pF Q30 IN – Q22 Q11 Q23 – – Q29 Q12 Q15 Q16 240 µA 120 µA 200 Ω 6 kΩ 200 Ω Q24 500 µA 6 kΩ 50 Ω VCC – – C1 = 110 pF for LT1007 C1 = 12 pF for LT1037 All component values shown are nominal. LT1007, LT1007A, LT1037, LT1037A LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS VIO TRIM SLOS017C – D3195, FEBRUARY 1989 – REVISED JANUARY 1993 2 schematic LT1007, LT1007A, LT1037, LT1037A LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS SLOS017C – D3195, FEBRUARY 1989 – REVISED JANUARY 1993 absolute maximum ratings over operating free-air temperature range (unless otherwise noted) Supply voltage, VCC + (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 V Supply voltage, VCC – . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 22 V Input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VCC ± Duration of output short circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unlimited Differential input current (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 25 mA Power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table Operating free-air temperature range: LT1007C, LT1007AC, LT1037C, LT1037AC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C LT1007M, LT1007AM, LT1037M, LT1037AM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 125°C Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: DW and P packages . . . . . . . . . . . . 260°C Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds: JG package . . . . . . . . . . . . . . . . . . . . 300°C NOTES: 1. All voltage values, unless otherwise noted, are with respect to the midpoint between VCC + and VCC –. 2. The inputs are protected by back-to-back diodes. Current limiting resistors are not used in order to achieve low noise. Excessive input current will flow if a differential input voltage in excess of approximately ± 0.7 V is applied between the inputs, unless some limiting resistance is used. DISSIPATION RATING TABLE PACKAGE TA ≤ 25° C POWER RATING DERATING FACTOR ABOVE TA = 25° C TA = 70° C POWER RATING TA = 125° C POWER RATING DW 1025 mW 8.2 mW/ ° C 656 mW N/A JG 1050 mW 8.4 mW/ ° C 672 mW 210 mW P 1000 mW 8 mW/ ° C 640 mW 200 mW recommended operating conditions C-SUFFIX M-SUFFIX UNIT MIN NOM MAX MIN NOM MAX Supply voltage, VCC + 4 15 22 4 15 22 V Supply voltage, VCC – –4 – 15 – 22 –4 – 15 – 22 V Input voltage voltage, VI TA = 25 ° C TA = full range Operating free-air temperature, TA ± 11 ± 10.5 0 POST OFFICE BOX 655303 ± 11 • DALLAS, TEXAS 75265 V ± 10.3 70 – 55 V 125 °C 3 LT1007, LT1007A, LT1037, LT1037A LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS SLOS017C – D3195, FEBRUARY 1989 – REVISED JANUARY 1993 electrical characteristics, VCC± = ±15 V PARAMETER VIO Input offset voltage αVIO Average temperature coefficient of input offset voltage IIO Input offset current IIB Input bias current VOM Peak output voltage swing AVD Large signal Large-signal differential voltage lifi i amplification TEST CONDITIONS TA LT1007C, LT1037C MIN TYP 25 ° C See Note 3 20 LT1007AC, LT1037AC MAX MIN 60 TYP MAX 10 25 0° C to 70° C 110 50 0°C to 70°C 1 0.6 25° C 12 0°C to 70°C 50 7 70 ± 15 25° C 40 ± 55 ± 10 ± 75 0°C to 70°C 25° C ± 12.5 ± 13.5 ± 13 ± 13.8 RL= 600 Ω 25° C ± 10.5 ± 12.5 ± 11 ± 12.5 0°C to 70°C ± 12 µV µV/ ° C nA nA V ± 12.5 RL ≥ 2 kΩ, VO = ± 12 V 25° C 5 20 7 20 RL ≥ 1 Ω, VO = ± 10 V 25° C 3.5 16 5 16 RL ≥ 600 Ω, VO = ± 10 V 25° C 2 12 3 12 V/ µV GΩ RL ≥ 2 kΩ, VO = ± 10 V 0°C to 70°C 2.5 4 RL ≥ 1 kΩ, VO = ± 10 V 0°C to 70°C 2 2.5 ri(CM) Common-mode input resistance 25° C 5 7 ro Open-loop output resistance 25° C 70 70 CMRR Common-mode rejection ratio kSVR Supply voltage rejection ratio PD Power dissipation VIC = ± 11 V VIC = ± 10.5 V VCC ± = ± 4 V to ± 18 V VCC ± = ± 4.5 V to ±18 V 25° C 110 0°C to 70°C 106 25° C 106 0°C to 70°C 102 126 117 Ω 130 dB 114 126 110 130 dB 106 LT1007C, LT1007AC 25°C 80 140 80 120 LT1037C, LT1037AC 25°C 85 140 80 130 0°C to 70°C 160 NOTE 3: VIO measurements are performed by automatic test equipment approximately 0.5 seconds after application of power. 4 ± 35 ± 45 RL= 2 kΩ RL= 2 kΩ 30 UNIT POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 144 mW LT1007, LT1007A, LT1037, LT1037A LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS SLOS017C – D3195, FEBRUARY 1989 – REVISED JANUARY 1993 electrical characteristics, VCC± = ±15 V PARAMETER TEST CONDITIONS TA LT1007M, LT1037M MIN 25 ° C VIO Input offset voltage αVIO Average temperature coefficient of input offset voltage IIO Input offset current – 55 ° C to 125 ° C IIB Input bias current – 55 ° C to 125 ° C VOM Peak output voltage swing AVD Large signal Large-signal differential voltage amplification lifi i TYP See Note 3 20 LT1007AM, LT1037AM MAX MIN 60 MAX 10 25 – 55 ° C to 125 ° C 160 60 – 55 ° C to 125 ° C 1 0.6 25 ° C 12 50 7 85 25 ° C ± 15 ± 55 ± 10 ± 95 25 ° C ± 12.5 ± 13.5 ± 13 ± 13.8 25 ° C ± 10.5 ± 12.5 ± 11 ± 12.5 ± 12 ± 35 ± 60 RL = 600 Ω – 55 ° C to 125 ° C 30 50 RL = 2 kΩ RL = 2 kΩ UNIT TYP µV µV/ °C nA nA V ± 12.5 RL ≥ 2 kΩ, VO = ± 12 V 25 ° C 5 20 7 20 RL ≥ 1 kΩ, VO = ± 10 V 25 ° C 3.5 16 5 16 12 3 12 V/ µV 25 ° C 2 RL ≥ 2 kΩ, VO = ± 10 V – 55 ° C to 125 ° C 2 3 RL ≥ 1 kΩ, VO = ± 10 V – 55 ° C to 125 ° C 1.5 2 RL ≥ 600 Ω, VO = ± 10 V ri(CM) Common-mode input resistance 25 ° C 5 7 GΩ ro Open-loop output resistance 25 ° C 70 70 Ω CMRR Common-mode rejection ratio kSVR Supply y voltage g rejection ratio PD Power dissipation VIC = ± 11 V VIC = ± 10.3 V VCC ± = ± 4 V to ± 18 V VCC ± = ± 4.5 V to ± 18 V LT1007M, LT1007AM LT1037M, LT1037AM 25 ° C 110 – 55 ° C to 125 ° C 104 25 ° C 106 – 55 ° C to 125 ° C 100 126 117 130 dB 112 126 110 130 dB 104 25 ° C 80 140 80 120 25 ° C 85 140 80 130 – 55 ° C to 125 ° C 170 mW 150 NOTE 3: VIO measurements are performed by automatic test equipment approximately 0.5 seconds after application of power. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 LT1007, LT1007A, LT1037, LT1037A LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS SLOS017C – D3195, FEBRUARY 1989 – REVISED JANUARY 1993 operating characteristics, VCC ± = ± 15 V, TA = 25 °C PARAMETER TEST CONDITIONS RL ≥ 2 kΩ, AVD ≥ 1 (LT1007, LT1007A) SR Slew rate VN(PP) Peak-to-peak equivalent input noise voltage f = 0.1 Hz to 10 Hz, See Note 4 Vn Equivalent q input noise voltage In Equivalent input q noise current GBW Gain bandwidth product roduct RL ≥ 2 kΩ, AVD ≥ 5 (LT1037, LT1037A) LT1007, LT1007A LT1007, LT1007A MIN TYP MIN TYP 17 1.7 25 2.5 11 15 MAX MAX V/µs 0.06 0.13 0.06 0.13 f = 10 Hz 2.8 4.5 2.8 4.5 f = 1 kHz 2.5 3.8 2.5 3.8 f = 10 kHz, See Note 5 1.5 4 1.5 4 f = 1 kHz, See Note 5 0.4 0.6 0.4 0.6 f = 100 kHz 5 f = 10 kHz, AV ≥ 15 8 45 60 UNIT µV nV/√Hz pA/√Hz MHz NOTES: 4. See the test circuit and frequency response curve for 0.1-Hz to 10-Hz noise (Figure 39) in the Applications Information section. 5. See the test circuit for current noise measurement (Figure 40) in the Applications Information section. 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 LT1007, LT1007A, LT1037, LT1037A LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS SLOS017C – D3195, FEBRUARY 1989 – REVISED JANUARY 1993 TYPICAL CHARACTERISTICS table of graphs FIGURE VIO Input offset voltage vs Temperature 1 ∆VIO Change in input offset voltage vs Time after power on vs Time (long-term stability) 2 3 IIO Input offset current vs Temperature 4 Input bias current vs Temperature over common-mode range 5 6 Common-mode limit voltage vs Free-air temperature 7 Maximum peak output voltage swing vs Load resistance vs Frequency 8 9 Differential voltage amplification vs vs vs vs vs vs at 10 11 12 13 14 15 16 VID CMRR Differential input voltage vs Output voltage 16 Common-mode rejection ratio vs Frequency 17 kSVR Supply voltage rejection ratio vs Frequency 18 SR Slew rate vs Free-air temperature (LT1007) vs Free-air temperature (LT1037) 19 20 φ Phase shift vs Frequency (LT1007) vs Frequency (LT1037) 11 12 φm Phase margin vs Free-air temperature (LT1007) vs Free-air temperature (LT1037) 19 20 Vn Equivalent input noise voltage vs vs vs vs vs 21 22 23 24 25 In Equivalent input noise current Total noise vs Frequency vs Source resistance 26 27 GBW Gain bandwidth product vs Free-air Temperature (LT1007) vs Free-air Temperature (LT1037) 19 20 IOS ICC Short-circuit output current vs Time (from short to GND) 28 Supply current vs Supply voltage 29 zo Closed-loop output impedance vs Frequency 30 Pulse response (LT1037) Small-signal (CL = 15 pF) Large-signal 31 32 Pulse response (LT1007) Small-signal (CL = 15 pF) Large-signal 33 34 IIB VOM AVD POST OFFICE BOX 655303 Frequency Frequency (LT1007) Frequency (LT1037) Temperature Load resistance Supply voltage 2 kΩ and 600 Ω Free-air temperature Time (0.01-Hz to 1-Hz noise) Frequency Bandwidth Supply voltage • DALLAS, TEXAS 75265 7 LT1007, LT1007A, LT1037, LT1037A LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS SLOS017C – D3195, FEBRUARY 1989 – REVISED JANUARY 1993 TYPICAL CHARACTERISTICS† INPUT OFFSET VOLTAGE OF REPRESENTATIVE UNITS vs FREE-AIR TEMPERATURE VIO – Input Offset Voltage – Vµ V V IO 40 10 VCC ± = ± 15 V LT1007, LT1037 30 20 10 0 LT1007A, LT1037A – 10 ÁÁ ÁÁ – 20 – 40 – 25 0 25 50 75 100 8 6 4 ÁÁ ÁÁ LT1007, LT1037 – 30 – 50 – 50 VCC ± = ± 15 V TA = 25°C VVIO µV IO – Change in Input Offset Voltage – V 50 INPUT OFFSET VOLTAGE vs TIME AFTER POWER ON DW, JG, or P Package 2 0 125 1 0 TA – Free-Air Temperature – ° C 2 INPUT OFFSET CURRENT vs TEMPERATURE ÁÁ ÁÁ ÁÁ – Input Offset Current – mA VIIO IO VVIO µV IO – Change in Input Offset Voltage – V 10 5 0.2 µV/Month Trend Line ÁÁ ÁÁ ÁÁ –5 – 10 0.2 µV/Month Trend Line 0 2 4 6 8 10 60 VCC ± = ± 15 V 50 40 30 20 LT1007, LT1037 10 LT1007A, LT1037A 0 – 75 – 50 – 25 0 25 50 75 TA – Free-Air Temperature – ° C t – Time – months Figure 3 Figure 4 † Data at high and low temperatures are applicable within the rated operating free-air temperature ranges of the various devices. 8 5 Figure 2 LONG TERM STABILITY OF INPUT OFFSET VOLTAGE FOR FOUR REPRESENTATIVE UNITS ÁÁ ÁÁ 4 Time After Power On – minutes Figure 1 0 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 100 125 LT1007, LT1007A, LT1037, LT1037A LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS SLOS017C – D3195, FEBRUARY 1989 – REVISED JANUARY 1993 TYPICAL CHARACTERISTICS† INPUT BIAS CURRENT vs FREE-AIR TEMPERATURE INPUT BIAS CURRENT vs COMMON-MODE INPUT VOLTAGE 20 50 VCC ± = ± 15 V 15 Device With Positive Input Current IIIB IB – Input Bias Current – nA IIIB IB – Input Bias Current – nA 40 30 20 LT1007M, LT1037M 10 – 50 – 25 0 25 50 75 100 125 TA – Free-Air Temperature –° C 5 ri(CM) = 20 V = 7 GΩ 3 nA 0 –5 –1 0 Device With Negative Input Current – 15 LT1007AM, LT1037AM 0 10 – 20 – 15 150 VCC ± = ± 15 V TA = 25°C – 10 –5 0 5 10 VIC – Common-Mode Input Voltage Figure 5 Figure 6 COMMON-MODE INPUT VOLTAGE RANGE LIMITS vs FREE-AIR TEMPERATURE PEAK OUTPUT VOLTAGE SWING vs LOAD RESISTANCE 15 –1 13.5 VCC + = 3 V to 20 V –3 VOM VOM – Output Voltage Swing – V Common-Mode Voltage – V (Referred to Power Supply Voltages) VCC+ –2 Positive Limit –4 4 VCC – = – 3 V to – 20 V Negative Limit 1 VCC– – 50 12 ÁÁÁÁÁ ÁÁÁÁÁ 10.5 VCC ± = ± 15 V TA = 25°C Positive Swing 9 Negative Swing 7.5 6 ÁÁ ÁÁ 3 2 15 4.5 3 1.5 – 25 0 25 50 75 100 TA – Free-Air Temperature – ° C 125 0 100 300 1k 3k 10 k RL – Load Resistance – Ω Figure 7 Figure 8 † Data at high and low temperatures are applicable within the rated operating free-air temperature ranges of the various devices. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 9 LT1007, LT1007A, LT1037, LT1037A LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS SLOS017C – D3195, FEBRUARY 1989 – REVISED JANUARY 1993 TYPICAL CHARACTERISTICS DIFFERENTIAL VOLTAGE AMPLIFICATION vs FREQUENCY 180 28 AVD A VD – Differential Voltage Amplification – dB VCC ± = ± 15 V RL = 2 kΩ TA = 25 ° C 160 24 140 20 120 100 16 LT1037 12 ÁÁ ÁÁ ÁÁ LT1007 8 VCC ± = 25°C TA = 25°C 4 0 1k 10 k 100 k 1M f – Frequency – Hz 10 M LT1037 LT1007 80 60 40 ÁÁ ÁÁ 20 0 – 20 0.01 1 LT1007 LT1037 DIFFERENTIAL VOLTAGE AMPLIFICATION AND PHASE SHIFT vs FREQUENCY DIFFERENTIAL VOLTAGE AMPLIFICATION AND PHASE SHIFT vs FREQUENCY 40 90° 35 100° φ 30 150° AVD 160° 5 0 –5 – 10 0.1 40 φ – Phase Shift 140° 15 ÁÁ ÁÁ ÁÁ 45 110° 130° 20 VCC ± = ± 15 V CL = 100 pF TA = 25°C 1 10 f – Frequency – MHz φ 120° 35 130° 30 140° 25 150° 20 ÁÁ ÁÁ ÁÁ 15 170° 90° VCC ± = ± 15 V 100° CL = 100 pF TA = 25°C 110° 50 120° 25 10 AVD AV = 5 160° 170° 10 180° 190° 100 180° 5 0 0.1 Figure 11 10 100 M Figure 10 AVD A VD – Differential Voltage Amplification – dB AVD A VD – Differential Voltage Amplification – dB Figure 9 100 10 k 1M f – Frequency – Hz 190° 1 10 f – Frequency – MHz Figure 12 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 100 φ – Phase Shift VO(pp) – Peak-to-Peak Output Voltage Swing – V VO(PP) PEAK-TO-PEAK OUTPUT VOLTAGE SWING vs FREQUENCY LT1007, LT1007A, LT1037, LT1037A LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS SLOS017C – D3195, FEBRUARY 1989 – REVISED JANUARY 1993 TYPICAL CHARACTERISTICS† DIFFERNTIAL VOLTAGE AMPLIFICATION vs FREE-AIR TEMPERATURE DIFFERNTIAL VOLTAGE AMPLIFICATION vs LOAD RESISTANCE ÁÁ ÁÁ ÁÁ 25 RL = 2 kΩ 20 RL = 1 kΩ 15 RL = 600 Ω 10 VCC ± = ± 15 V VO = ± 10 V VO = ± 8 V for TA ≥ 100 ° C RL = 600 Ω 5 0 – 50 – 25 VCC ± = ± 15 V TA = 25°C – Differential Voltage Amplification – dB AAVD VD AAVD VD – Differential Voltage Amplification – dB 25 0 25 50 75 100 TA – Free-Air Temperature – °C 125 20 15 10 ÁÁ ÁÁ ÁÁ 5 0 0.1 0.4 1 4 RL – Load Resistance – kΩ Figure 13 Figure 14 DIFFERNTIAL VOLTAGE AMPLIFICATION vs SUPPLY VOLTAGE DIFFERNTIAL INPUT VOLTAGE vs OUTPUT VOLTAGE 4 25 VCC ± = ± 15 V TA = 25°C RL = 2 kΩ 20 VVID ID – Differential Input Voltage – V AAVD VD – Differential Amplification – dB TA = 25°C ÁÁ ÁÁ 15 RL = 600 Ω 10 3 2 RL = 600 Ω 1 0 ÁÁ ÁÁ 5 0 10 0 ±5 ± 10 ± 15 ± 20 ± 25 RL = 2 kΩ –1 –2 – 15 – 10 VCC ± – Supply Voltage – V –5 0 5 10 15 VO – Output Voltage – V Figure 15 Figure 16 † Data at high and low temperatures are applicable within the rated operating free-air temperature ranges of the various devices. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 11 LT1007, LT1007A, LT1037, LT1037A LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS SLOS017C – D3195, FEBRUARY 1989 – REVISED JANUARY 1993 TYPICAL CHARACTERISTICS† COMMON-MODE REJECTION RATIO vs FREQUENCY 160 VCC = ± 15 V VCM = ± 10 V TA = 25°C k SVR – Supply Voltage Rejection Ratio – dB CMRR – Common-Mode Rejection Ratio – dB 140 SUPPLY VOLTAGE REJECTION RATIO vs FREQUENCY 120 100 LT1037 80 LT1007 104 105 106 120 100 107 Negative Supply 80 60 ÁÁ ÁÁ 60 40 103 TA = 25°C 140 Positive Supply 40 20 0 1 10 f – Frequency – Hz Figure 17 102 103 104 105 106 f – Frequency – Hz 107 108 Figure 18 LT1007 LT1037 SLEW RATE, PHASE MARGIN AND GAIN BANDWIDTH PRODUCT vs FREE-AIR TEMPERATURE SLEW RATE, PHASE MARGIN AND GAIN BANDWIDTH PRODUCT vs FREE-AIR TEMPERATURE (f = 100 kHz) GBW 8 3 7 SR VCC = ± 15 V CL = 100 pF – 25 0 25 50 75 100 TA – Free-Air Temperature – ° C 60 ÁÁ ÁÁ 2 1 – 50 VCC = 15 V CL = 100 pF 125 φm 50 60 (f = 100 kHz) GBW 20 50 SR 15 10 – 50 – 25 Figure 19 0 25 50 75 100 TA – Free-Air Temperature – ° C Figure 20 † Data at high and low temperatures are applicable within the rated operating free-air temperature ranges of the various devices. 12 POST OFFICE BOX 655303 70 • DALLAS, TEXAS 75265 125 Gain Bandwidth Product 50 SR – Slew Rate – V/sµ s SR – Slew Rate – V/sµ s ÁÁ ÁÁ 9 φm m – Phase Margin φm 60 Gain Bandwidth Product φm m – Phase Margin 70 LT1007, LT1007A, LT1037, LT1037A LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS SLOS017C – D3195, FEBRUARY 1989 – REVISED JANUARY 1993 TYPICAL CHARACTERISTICS† EQUIVALENT INPUT NOISE VOLTAGE OVER A 100-SECOND TIME PERIOD 5 VCC ± = ± 15 V f = 0.01 Hz to 1 Hz ÁÁÁ ÁÁÁ ÁÁÁ 4 V Vn nV/ Hz n – Noise Voltage – 20 nV/Hz nV/ Hz Vn V n – Equivalent Input Noise Voltage – nV/Hz ÁÁ ÁÁ ÁÁ EQUIVALENT INPUT NOISE VOLTAGE vs FREE-AIR TEMPERATURE f = 10 Hz 3 f = 1kHz 2 1 0 – 50 – 25 0 25 50 75 100 TA – Free-Air Temperature – ° C 125 0 20 Figure 21 10 VCC = ± 15 V TA = 25°C 30 10 Maximum 3 1/f Corner = 2 Hz 1 V Vn n – RMS Noise Voltage – µ V Vn V n – Equivalent Input Noise Voltage – nV/Hz nV/ Hz 100 BROADBAND NOISE VOLTAGE 0.1 Hz TO INDICATED FREQUENCY 100 0.1 0.1 80 Figure 22 EQUIVALENT INPUT NOISE VOLTAGE vs FREQUENCY ÁÁ ÁÁ ÁÁ 40 60 t – Time – s VCC ± = ± 15 V TA = 25°C 1 0.1 Typical 10 100 f – Frequency – Hz 1000 0.01 0.1 Figure 23 1 10 B – Bandwidth – kHz 100 Figure 24 † Data at high and low temperatures are applicable within the rated operating free-air temperature ranges of the various devices. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 13 LT1007, LT1007A, LT1037, LT1037A LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS SLOS017C – D3195, FEBRUARY 1989 – REVISED JANUARY 1993 TYPICAL CHARACTERISTICS† ÁÁ ÁÁ ÁÁ 5 TA = 25°C IInn – RMS Noise Current Density – ppA/Hz A/ Hz Vn V n– RMS Voltage Noise Density – nV/Hz nV/ Hz ÁÁ ÁÁ ÁÁ EQUIVALENT INPUT NOISE VOLTAGE vs SUPPLY VOLTAGE 4 f = 10 Hz 3 f = 1 kHz 2 1 0 0 ±5 ± 10 ± 15 ± 20 VCC ± – Supply Voltage – V EQUIVALENT INPUT NOISE CURRENT vs FREQUENCY 10 VCC ± = ± 15 V 3 Maximum 1 0.3 0.1 10 ± 25 100 1k f – Frequency – Hz Figure 25 ÁÁ ÁÁ ÁÁ SHORT-CIRCUIT OUTPUT CURRENT vs ELAPSED TIME 50 VCC = ±15 V TA = 25°C R R 40 IIOS OS – Short Circuit Current – mA V Vn nV/ Hz n – Total Noise Voltage – nV/Hz 1000 RS = 2R At 1 kHz At 10 Hz TA = – 55°C 30 TA = 25°C 20 TA = 125°C 10 VCC = ± 15 V 0 – 10 ÁÁÁ ÁÁÁ ÁÁÁ 10 Resistor Noise Only 1 0.1 10 k Figure 26 TOTAL NOISE VOLTAGE vs SOURCE RESISTANCE 100 Typical 1/f Corner = 120 Hz – 30 TA = 25°C – 40 TA = – 55°C – 50 1 10 RS – Source Resistance – kΩ 100 TA = 125°C – 20 0 1 2 Figure 27 Figure 28 † Data at high and low temperatures are applicable within the rated operating free-air temperature ranges of the various devices. 14 POST OFFICE BOX 655303 3 Time From Output Short to Ground – minutes • DALLAS, TEXAS 75265 LT1007, LT1007A, LT1037, LT1037A LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS SLOS017C – D3195, FEBRUARY 1989 – REVISED JANUARY 1993 TYPICAL CHARACTERISTICS† SUPPLY CURRENT vs SUPPLY VOLTAGE CLOSED-LOOP OUTPUT IMPEDANCE vs FREQUENCY 100 4 TA = 125°C TA = 25°C TA = – 55°C 2 ÁÁ ÁÁ 10 zZo o – Output Impedance – Ω IICC CC – Supply Current – mA 3 1 1 0.1 LT1007 AV = 1 0.01 0 ±5 ± 10 ± 15 VCC ± – Supply Voltage – V 0 ± 20 0.001 10 100 LT1037 AV = 5 VCC ± = ± 15 V IO = 1 mA TA = 25°C 1k 10 k f – Frequency – Hz Figure 29 100 k 1M Figure 30 LT1037 LT1037 VOLTAGE-FOLLOWER SMALL-SIGNAL PULSE RESPONSE VOLTAGE-FOLLOWER LARGE-SIGNAL PULSE RESPONSE 80 20 60 15 40 10 V VO O – Output Voltage – mV VO – Output Voltage – mV VO LT1037 AV = 1000 LT1007 AV = 1000 20 0 ÁÁ ÁÁ VCC ± = ± 15 V AV = 5 CL = 15 pF TA = 25°C – 40 – 60 5 0 ÁÁ ÁÁ – 20 VCC ± = ± 15 V AV = 5 TA = 25°C –5 – 10 – 15 – 80 – 20 0 200 400 600 800 1000 1200 1400 1600 t – Time – ns 0 1 Figure 31 2 3 4 5 t – Time – µs 6 7 8 Figure 32 † Data at high and low temperatures are applicable within the rated operating free-air temperature ranges of the various devices. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 15 LT1007, LT1007A, LT1037, LT1037A LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS SLOS017C – D3195, FEBRUARY 1989 – REVISED JANUARY 1993 TYPICAL CHARACTERISTICS 80 LT1007 VOLTAGE-FOLLOWER LARGE-SIGNAL PULSE RESPONSE 8 VCC ± = ± 15 V AV = 1 CL = 15 pF TA = 25°C 40 20 0 ÁÁ ÁÁ 4 2 0 ÁÁ ÁÁ – 20 – 40 – 60 – 80 VCC ± = ± 15 V AV = – 1 TA = 25°C 6 VO – Output Voltage – mV VO 60 VO – Output Voltage – mV VO LT1007 VOLTAGE-FOLLOWER SMALL-SIGNAL PULSE RESPONSE –2 –4 –6 0 0.5 1 1.5 2 2.5 t – Time – µs 3 3.5 4 –8 0 2 4 6 8 10 12 14 16 t – Time – µs Figure 33 Figure 34 APPLICATION INFORMATION general The LT1007- and LT1037-series devices may be inserted directly into OP-07, OP-27, OP-37, and 5534 sockets with or without removal of external-compensation or nulling components. In addition, the LT1007 and LT1037 may be fitted to µA741 sockets by removing or modifying external nulling components. offset voltage adjustment The input offset voltage and its change with temperature of the LT1007 and LT1037 are permanently trimmed to a low level at wafer testing . However, if further adjustment of VIO is necessary, the use of a 10-kΩ nulling potentiometer, as shown in Figure 35, will not degrade drift with temperature. Trimming to a value other than zero creates a drift of VIO/300 µV/°C (e.g., if VIO is adjusted to 300 µV, the change in temperature coefficient will be 1 µV/°C). The adjustment range with a 10-kΩ potentiometer is approximately ± 2.5 mV. If a smaller adjustment range is needed, the sensitivity and resolution of the nulling can be improved by using a smaller potentiometer in conjunction with fixed resistors. The example in Figure 36 has an approximate null range of ± 200 µV. offset voltage and drift Unless proper care is exercised, thermocouple effects at the contacts to the input terminals, caused by temperature gradients across dissimilar metals, can exceed the inherent temperature coefficient of the amplifier. Air currents should be minimized, package leads should be short, input leads should be close together, and input leads should be at the same temperature. 16 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 LT1007, LT1007A, LT1037, LT1037A LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS SLOS017C – D3195, FEBRUARY 1989 – REVISED JANUARY 1993 APPLICATION INFORMATION 1 kΩ VCC + 10 kΩ 4.7 kΩ VCC + IN – – – IN – 4.7 kΩ OUT IN + + + IN + OUT 4 VCC – VCC – Figure 35. Standard Adjustment Figure 36. Improved Sensitivity Adjustment The circuit shown in Figure 37 can be used to measure offset voltage. In addition, with the supply voltages increased to ± 20 V, it can be used as the burn-in configuration for the LT1007 and LT1037. When RF ≤ 100 Ω and the input is driven with a fast large-signal pulse ( > 1 V), the output waveform will be as shown in Figure 38. During the fast-feedthrough-like portion of the output, the input protection diodes effectively short the output to the input and a current, limited only by the output short-circuit protection, is drawn by the signal generator. When RF is ≥ 500 Ω, the output is capable of handling the current requirements (IL ≤ 20 mA at 10 V), the amplifier stays in its active mode, and a smooth transition occurs. When RF is > 2 kΩ, a pole will be created with RF and the amplifier’s input capacitance, creating additional phase shift and reducing the phase margin. A small capacitor (20 pF to 50 pF) in parallel with RF will eliminate this problem. 50 kΩ† 15 V – 100 Ω + 50 kΩ RF VO – Output – 15 V VO = 1000 VOS 2.8 V /µs + † Resistors must have low thermoelectric potential Figure 37. Test Circuit for Offset Voltage and Offset Voltage Drift With Temperature POST OFFICE BOX 655303 Figure 38. Pulse Operation • DALLAS, TEXAS 75265 17 LT1007, LT1007A, LT1037, LT1037A LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS SLOS017C – D3195, FEBRUARY 1989 – REVISED JANUARY 1993 APPLICATION INFORMATION noise testing Figure 39 shows a test circuit for 0.1-Hz to 10-Hz peak-to-peak noise measurement of the LT1007 and LT1037. The frequency response of this noise tester indicates that eeethe 0.1 Hz corner is defined by only one zero. Because the time limit acts as an additional zero to eliminate noise contributions from the frequency band below 0.1 Hz, the test time to measure 0.1-Hz to 10-Hz noise should not exceed 10 seconds. 0.1 Hz to 10 Hz p-p NOISE TESTER FREQUENCY RESPONSE 100 90 Gain – dB 80 70 60 50 40 30 0.01 0.1 1 Frequency – Hz 10 100 0.1 µF 100 kΩ – 10 Ω 2 kΩ † + + Voltage Gain = 50,000 4.7 µF 4.3 kΩ 22 µF – 100 kΩ 2.2 µF 24.3 kΩ 0.1 µF † Device under test NOTE: All capacitor values are for non-polarized capacitors only. Figure 39. 0.1-Hz To 10-Hz Noise Test Circuit 18 Scope x1 RIN = 1 MΩ LT1001 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 110 kΩ LT1007, LT1007A, LT1037, LT1037A LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS SLOS017C – D3195, FEBRUARY 1989 – REVISED JANUARY 1993 APPLICATION INFORMATION Special test precautions are required to measure the typical 60-nV peak-to-peak noise performance of the LT1007 and LT1037: 1. The device should be warmed up for at least five minutes. As the operational amplifier warms up, the offset voltage typically changes 3 µV, due to the chip temperature increasing 10°C to 20°C from the moment the power supplies are turned on. In the 10-second measurement interval, these temperature-induced effects can easily exceed tens of nanovolts. 2. The device must be well shielded from air currents to eliminate thermoelectric effects. In excess of a few nanovolts, thermoelectric effects would invalidate the measurements. 3. Sudden motion in the vicinity of the device can produce a feedthrough effect that increases observed noise. When measuring noise on a large number of units, a noise-voltage density test is recommended. A 10-Hz noise-voltage density measurement will correlate well with a 0.1-Hz to 10-Hz peak-to-peak noise reading since both results are determined by the white noise and the location of the 1/f corner frequency. Figure 40 shows a circuit that measures noise current and presents the formula for calculating noise current. 10 kΩ 100 Ω 500 kΩ nV) ] ń + [vn 1*M(130 W x 100 – 2 eno + 500 kΩ In 2 1 2 Figure 40. Noise Test Circuit The LT1007 and LT1037 achieve low noise, in part, by operating the input stage at 120 µA versus the typical 10 µA for most other operational amplifiers. Voltage noise is directly proportional to the square root of the stage current; therefore, the LT1007 and LT1037 noise current is relatively high. At low frequencies, the low 1/f current-noise corner frequency (≈ 120 Hz) minimizes noise current to some extent. In most practical applications, however, noise current will not limit system performance; this is illustrated in Figure 27, where: total noise = [(noise voltage)2(noise current x RS)2 + (resistor noise)2]1/2 Three regions can be identified as a function of source resistance: (i) RS ≤ 400 Ω Voltage noise dominates in region (i) (ii) RS = 400 Ω to 50 kΩ at 1 kHz RS = 400 Ω to 8 kΩ at 10 kHz Resistor noise dominates in region (ii) (iii) RS > 50 Ω at 1 kHz RS > 8 kΩ at 10 Hz Current noise dominates in region (iii) The LT1007 and LT1037 should not be used in region (iii) where total system noise is at least six times higher than the noise voltage of the operational amplifier (i.e., the low-voltage noise specification is completely wasted). POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 19 LT1007, LT1007A, LT1037, LT1037A LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS SLOS017C – D3195, FEBRUARY 1989 – REVISED JANUARY 1993 APPLICATION INFORMATION The sine wave generator application shown below, utilizes the low-noise and low-distortion characteristics of the LT1037. 430 Ω – 2 LT1037 #327 Lamp + 1 2π RC R =1591.5Ω ± 0.1 % C = 0.1 µF ± 0.1 % C R C f Output + 3 6 R TOTAL HARMONIC DISTORTION ≤ 0.0025% NOISE ≤ 0.001% AMPLITUDE = ± 8 V OUTPUT FREQUENCY = 1.000 kHz FOR VALUES GIVEN ± 0.4% Figure 41. Ultra-Pure 1-kHz Sine-Wave Generator EQUIVALENT INPUT NOISE VOLTAGE OVER A 10-SECOND PERIOD 340 kΩ 1% Voltage Noise (20 nV/DIV) 365 Ω 1% IN + 2 3 5 4 6 t – Time – s 7 8 9 10 Figure 42 + 3 1 20 kΩ Trim 7 LT1037 0 20 15 kΩ 5% 15 V 2 – f = 0.1 Hz to 10 Hz 6 Output 4 – 15 V RN60C Film Resistors The high gain and wide bandwidth of the LT1037 and (LT1007) is useful in low-frequency high-closed-loop-gain amplifier applications. A typical precision operational amplifier may have an open loop gain of one million with 500 kHz bandwidth. As the gain error plot shows, this device is capable of 0.1% amplifying accuracy up to 0.3 Hz only. Even instrumentation range signals can vary at a faster rate. The LT1037’s gain precision – bandwidth product is 200 times higher, as shown. Figure 43. Gain 1000 Amplifier With 0.01% Accuracy, DC to 5 Hz POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 LT1007, LT1007A, LT1037, LT1037A LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS SLOS017C – D3195, FEBRUARY 1989 – REVISED JANUARY 1993 APPLICATION INFORMATION GAIN ERROR vs FREQUENCY CLOSED LOOP GAIN = 1000 1 Typical Precision Operational Amplifier 15 V LT1007 Gain Error – % 0.1 365 Ω 1% 8 15 kΩ 1% Output 7 3 IN + 10 MΩ 5% + LT1007 2 LT1037 – 4 0.01 –15 V GAIN ERROR 0.001 0.1 LOOP GAIN + CLOSED OPEN LOOP GAIN 1 10 f – Frequency – Hz Positive feedback to one of the nulling terminals creates approximately 5 µV of hysteresis. Output can sink 16 mA. 100 Figure 44. 340 kΩ 1% 20 kΩ 5% Input offset voltage is typically changed less than 5 µV due to the feedback. Figure 45. Microvolt Comparator With Hysteresis 10 kΩ Trim + 3 6 15 Ω 5% 100 kΩ 15 V Output ± 10 V RL 300 Ω IN + 100 Ω 2 100 pF 3 47 kΩ The addition of the LT1007 doubles the amplifier’s output drive to ± 33 mA. Gain accuracy is 0.02%, slightly degraded compared to above because of self heating of the LT1037 under load. Figure 46. Precision Amplifier Drives 300-Ω Load to ± 10 V POST OFFICE BOX 655303 7 LT1037 + – LT1037 0.01 µF 7.8 kΩ – 365 Ω 1% 6 LT1007 3 15 Ω 5% + 2 – 2 0.033 µF 6 Output 4 – 15 V All Resistors Metal Film Mag Phono Input Figure 47. Phono Preamplifier • DALLAS, TEXAS 75265 21 LT1007, LT1007A, LT1037, LT1037A LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS SLOS017C – D3195, FEBRUARY 1989 – REVISED JANUARY 1993 APPLICATION INFORMATION 0.01 4.99 kΩ 2 316 kΩ – 100 kΩ 6 Output LT1037 + Tape Head Input 3 All Resistors Metal Film Figure 48. Tape Head Amplifier 15 V + 10 µF 10 Ω 1 kΩ 100 µF + 33 Ω 100 µF 2N2219A + Chopped Detector Output 267 Ω† 50 mA 3 + 100 µF IR Radiation Optical Chopper 15 V + 7 LT1007 392 Ω* 2 Photo-Conductive Infra-Red Detector HgCdTe Type Infra-Red Associates, Inc – 6 4 – 15 V Output To Demodulator 392 Ω† 392 Ω† 13 Ω at 77°K † 1% metal film Figure 49. Infra-Red Detector Preamplifier 22 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 Synchronous LT1007, LT1007A, LT1037, LT1037A LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS SLOS017C – D3195, FEBRUARY 1989 – REVISED JANUARY 1993 APPLICATION INFORMATION 7.5 V 5 kΩ 3 2.5 V LT1009 + 7 LT1007 2 – 6 4 –7.5 V Reference Out 350 Ω Bridge 15 V 3 30.1 kΩ† 2 + LT1007 3 – 4 –7.5 V 7 LT1007 10 kΩ Zero Trim 7.5 V 7 + 2 – 4 6 0 to 10 V Output 1 µF 30.1 kΩ† –15 V 6 † RN60C Film Resistors Gain Trim 50 kΩ 499 Ω† The LT1007 is capable of providing excitation current directly to bias the 350-Ω bridge at 5 V. With only 5 V across the bridge (as opposed to the usual 10 V) total power dissipation and bridge warm-up drift is reduced. The bridge output signal is halved, but the LT1007 can amplify the reduced signal accurately. Figure 50. Strain Gauge Signal Conditioner With Bridge Excitation POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 23 IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. 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