ALD1701BSAL

ADVANCED LINEAR DEVICES, INC. ALD1701A/ALD1701B ALD1701/ALD1701G MICROPOWER RAIL-TO-RAIL CMOS OPERATIONAL AMPLIFIER GENERAL DESCRIPTION FEATURES The ALD1701A/ALD1701B/ALD1701/ALD1701G is a monolithic CMOS micropower high slew rate operational amplifier intended for a broad range of analog applications using ±1V to ±5V dual power supply systems, as well as +2V to +10V battery operated systems. All device characteristics are specified for +5V single supply or ±2.5V dual supply systems. Supply current is 250µA maximum at 5V supply voltage. It is manufactured with Advanced Linear Devices' enhanced ACMOS silicon gate CMOS process. • All parameters specified for +5V single supply or ±2.5V dual supply systems • Rail to rail input and output voltage ranges • No frequency compensation required -unity gain stable • Extremely low input bias currents -1.0pA typical (30pA max.) • Ideal for high source impedance applications • Dual power supply ±1.0V to ±5.0V operation • Single power supply +2.0V to +10.0V operation • High voltage gain -- typically 100V/mV @ ±2.5V(100dB) • Drive as low as 10KΩ load • Output short circuit protected • Unity gain bandwidth of 0.7MHz • Slew rate of 0.7V/µs • Low power dissipation • Suitable for rugged, temperature-extreme environments The ALD1701A/ALD1701B/ALD1701/ALD1701G is designed to offer a trade-off of performance parameters providing a wide range of desired specifications. It has been developed specifically for the +5V single supply or ±1V to ±5V dual supply user and offers the popular industry standard pin configuration of µA741 and ICL7611 types. Several important characteristics of the device make application easier to implement at those voltages. First, the operational amplifier can operate with rail to rail input and output voltages. This means the signal input voltage and output voltage can be equal to the positive and negative supply voltages. This feature allows numerous analog serial stages and flexibility in input signal bias levels. Second, the device was designed to accommodate mixed applications where digital and analog circuits may operate off the same power supply or battery. Third, the output stage can typically drive up to 50pF capacitive and 10KΩ resistive loads. These features, combined with extremely low input currents, high open loop voltage gain of 100V/mV, useful bandwidth of 700KHz, a slew rate of 0.7V/µs, low power dissipation of 0.5mW, low offset voltage and temperature drift, make the ALD1701 a versatile, micropower operational amplifier. The ALD1701A/ALD1701B/ALD1701/ALD1701G, designed and fabricated with silicon gate CMOS technology, offers 1pA typical input bias current. On chip offset voltage trimming allows the device to be used without nulling in most applications. Additionally, robust design and rigorous screening make this device especially suitable for operation in temperature-extreme environments and rugged conditions. APPLICATIONS • • • • • • • • • • • • • Voltage amplifier Voltage follower/buffer Charge integrator Photodiode amplifier Data acquisition systems High performance portable instruments Signal conditioning circuits Sensor and transducer amplifiers Low leakage amplifiers Active filters Sample/Hold amplifier Picoammeter Current to voltage converter PIN CONFIGURATION ORDERING INFORMATION (“L” suffix denotes lead-free (RoHS)) Operating Temperature Range 0°C to +70°C 0°C to +70°C -55°C to 125°C 8-Pin Small Outline Package (SOIC) 8-Pin Plastic Dip Package 8-Pin CERDIP Package ALD1701ASAL ALD1701BSAL ALD1701SAL ALD1701GSAL ALD1701APAL ALD1701BPAL ALD1701PAL ALD1701GPAL ALD1701ADA ALD1701BDA ALD1701DA ALD1701GDA 8 N/C 7 V+ 3 6 OUT 4 5 N/C N/C 1 -IN 2 +IN V- 2 TOP VIEW SAL, PAL, DA PACKAGES * N/C pins are internally connected. Do not connect externally. * Contact factory for leaded (non-RoHS) or high temperature versions. Rev 2.1 ©2010 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, CA 94089-1706 Tel: (408) 747-1155 Fax: (408) 747-1286 www.aldinc.com ABSOLUTE MAXIMUM RATINGS Supply voltage, V+ Differential input voltage range Power dissipation Operating temperature range SAL, PAL packages DA package Storage temperature range Lead temperature, 10 seconds CAUTION: ESD Sensitive Device. Use static control procedures in ESD controlled environment. 10.6V -0.3V to V+ +0.3V 600 mW 0°C to +70°C -55°C to +125°C -65°C to +150°C +260°C OPERATING ELECTRICAL CHARACTERISTICS TA = 25°C VS = ±2.5V unless otherwise specified Parameter Symbol Min 1701A Typ Max Min 1701B Typ Max Min ±5.0 10.0 ±1.0 2.0 ±5.0 10.0 ±1.0 2.0 1701 Typ Max Min Supply Voltage VS V+ Input Offset Voltage VOS Input Offset Current IOS 1.0 25 240 1.0 25 240 1.0 25 240 Input Bias Current IB 1.0 30 300 1.0 30 300 1.0 30 300 Input Voltage Range VIR Input Resistance RIN Input Offset Voltage Drift TCVOS Power Supply Rejection Ratio PSRR 70 70 80 80 65 65 80 80 65 65 80 80 60 60 Common Mode Rejection Ratio CMRR 70 70 83 83 65 65 83 83 65 65 83 83 Large Signal Voltage Gain AV 40 100 1000 32 100 1000 32 100 1000 ±1.0 2.0 0.9 1.7 -0.3 -2.8 5.3 2.8 20 -2.48 ALD1701A/ALD1701B ALD1701/ALD1701G 30 450 pA pA TA = 25°C 0°C ≤ TA ≤ +70°C 1.0 50 600 pA pA TA = 25°C 0°C ≤ TA ≤ +70°C -0.3 -2.8 5.3 2.8 5.3 2.8 V V V+ = +5V VS = ±2.5V -0.3 -2.8 7 4.999 PD 1.0 7 VO high 4.99 Power Dissipation RS ≤ 100KΩ 0°C ≤ TA ≤ +70°C 7 VO low IS mV mV 7 Range Supply Current 10.0 11.0 4.5 5.3 1012 Voltage ISC 5.3 2.8 Dual Supply Single Supply 1012 0.001 Output Short Circuit Current -0.3 -2.8 0.01 4.99 0.01 4.999 -2.48 2.40 1 120 0.001 -2.40 2.48 20 4.99 -2.40 2.48 1.25 120 80 80 dB dB RS ≤ 100KΩ 0°C ≤ TA ≤ +70°C 60 60 83 83 dB dB RS ≤ 100KΩ 0°C ≤ TA ≤ +70°C 20 80 1000 V/ mV V/ mV V/ mV RL = 100KΩ RL ≥ 1MΩ RL = 100KΩ 0°C ≤ TA ≤ +70°C 0.01 V RL =1MΩ V+ = +5V V -2.40 V 0°C ≤ TA ≤ +70°C RL =100KΩ V 0°C ≤ TA ≤ +70°C 120 1.25 Advanced Linear Devices 0.001 4.99 4.999 -2.48 2.40 1 250 RS ≤ 100KΩ -2.40 2.48 1 250 µV/°C 0.01 4.999 -2.48 2.40 Ω 10 0.001 2.48 1 250 1.25 Test Conditions V 1012 VO low VO high 2.40 2.0 2.8 Unit ±5.0 10.0 ±1.0 2.0 1012 20 Output ±5.0 10.0 1701G Typ Max 120 mA 300 µA VIN = 0V No Load 1.50 mW VS = ±2.5V 2 of 9 OPERATING ELECTRICAL CHARACTERISTICS (cont'd) TA = 25°C VS = ±2.5V unless otherwise specified Parameter Symbol Min 1701A Typ Max 1701B Typ Min Input Capacitance CIN 1 Bandwidth BW 400 700 400 700 Slew Rate SR 0.33 0.7 0.33 0.7 Rise time tr Overshoot Factor Settling Time ts Max Min 1701 Typ 1 Max Min 1701G Typ Max Unit Test Conditions 1 1 pF 400 700 700 KHz 0.33 0.7 0.7 V/µs AV = +1 RL = 100KΩ 0.2 0.2 0.2 0.2 µs RL = 100KΩ 20 20 20 20 % RL =100KΩ CL = 50pF 10.0 10.0 10.0 10.0 µs 0.1% AV = -RL=100KΩ CL = 50pF TA = 25°C VS = ±5.0V unless otherwise specified Parameter Symbol Min 1701A Typ Max 1701B Typ Min Max Min 1701 Typ Max Min 1701G Typ Max Unit Test Conditions Power Supply Rejection Ratio PSRR 83 83 83 83 dB RS ≤ 100KΩ Common Mode Rejection Ratio CMRR 83 83 83 83 dB RS ≤ 100KΩ Large Signal Voltage Gain AV 250 250 250 250 V/mV RL =100KΩ Output Voltage Range VO low -4.98 VO high 4.90 4.98 -4.98 -4.90 4.98 V V RL =100KΩ Bandwidth BW 1.0 1.0 1.0 1.0 MHz Slew Rate SR 1.0 1.0 1.0 1.0 V/µs -4.90 4.90 -4.98 4.98 -4.90 4.90 -4.98 4.98 -4.90 4.90 AV = +1 CL = 50pF VS = ±2.5V -55°C ≤ TA ≤ +125°C unless otherwise specified 1701BDA Min Typ 1701DA Max Min Typ Test Parameter Symbol Max Unit 3.0 6.5 mV 8.0 8.0 nA 10.0 10.0 nA Conditions Input Offset VOS Input Offset Current IOS Input Bias Current IB Power Supply Rejection Ratio PSRR 60 75 60 75 dB RS ≤ 100KΩ Common Mode Rejection Ratio CMRR 60 83 60 83 dB RS ≤ 100KΩ Large Signal Voltage Gain AV 15 50 15 50 V/ mV RL = 100KΩ Output Voltage Range VO low VO high 2.35 -2.47 2.45 2.35 -2.47 2.45 V V RL = 100KΩ RS ≤ 100KΩ Voltage ALD1701A/ALD1701B ALD1701/ALD1701G -2.40 Advanced Linear Devices -2.40 3 of 9 Design & Operating Notes: 1. The ALD1701A/ALD1701B/ALD1701/ALD1701G CMOS operational amplifier uses a 3 gain stage architecture and an improved frequency compensation scheme to achieve large voltage gain, high output driving capability, and better frequency stability. In a conventional CMOS operational amplifier design, compensation is achieved with a pole splitting capacitor together with a nulling resistor. This method is, however, very bias dependent and thus cannot accommodate the large range of supply voltage operation as is required from a stand alone CMOS operational amplifier. The ALD1701A/ALD1701B/ ALD1701/ALD1701G is internally compensated for unity gain stability using a novel scheme that does not use a nulling resistor. This scheme produces a clean single pole roll off in the gain characteristics while providing for more than 70 degrees of phase margin at the unity gain frequency. 2. The ALD1701A/ALD1701B/ALD1701/ALD1701G has complementary p-channel and n-channel input differential stages connected in parallel to accomplish rail to rail input common mode voltage range. This means that with the ranges of common mode input voltage close to the power supplies, one of the two differential stages is switched off internally. To maintain compatibility with other operational amplifiers, this switching point has been selected to be about 1.5V below the positive supply voltage. Since offset voltage trimming on the ALD1701A/ALD1701B/ALD1701/ALD1701G is made when the input voltage is symmetrical to the supply voltages, this internal switching does not affect a large variety of applications such as an inverting amplifier or non-inverting amplifier with a gain larger than 2.5 (5V operation), where the common mode voltage does not make excursions above this switching point. The user should however, be aware that this switching does take place if the operational amplifier is connected as a unity gain buffer, and should make provision in his design to allow for input offset voltage variations. 3. The input bias and offset currents are essentially input protection diode reverse bias leakage currents, and are typically less than 1pA at room temperature. This low input bias current assures that the analog signal from the source will not be distorted by input bias currents. Normally, this extremely high input impedance of greater than 1012Ω would not be a problem as the source impedance would limit the node impedance. However, for applications where source impedance is very high, it may be necessary to limit noise and hum pickup through proper shielding. 4. The output stage consists of class AB complementary output drivers, capable of driving a low resistance load. The output voltage swing is limited by the drain to source on-resistance of the output transistors as determined by the bias circuitry, and the value of the load resistor. When connected in the voltage follower configuration, the oscillation resistant feature, combined with the rail to rail input and output feature, makes an effective analog signal buffer for medium to high source impedance sensors, transducers, and other circuit networks. 5. The ALD1701A/ALD1701B/ALD1701/ALD1701G operational amplifier has been designed to provide full static discharge protection. Internally, the design has been carefully implemented to minimize latch up. However, care must be exercised when handling the device to avoid strong static fields that may degrade a diode junction, causing increased input leakage currents. In using the operational amplifier, the user is advised to power up the circuit before, or simultaneously with any input voltages applied, and to limit input voltages not to exceed 0.3V of the power supply voltage levels. 6. The ALD1701A/ALD1701B/ALD1701/ALD1701G, with its micropower operation, offers numerous benefits in reduced power supply requirements, less noise coupling and current spikes, less thermally induced drift, better overall reliability due to lower self heating, and lower input bias current. It requires practically no warm up time as the chip junction heats up to only 0.1°C above ambient temperature under most operating conditions. TYPICAL PERFORMANCE CHARACTERISTICS ±7 INPUTS GROUNDED OUTPUT UNLOADED 400 COMMON MODE INPUT VOLTAGE RANGE AS A FUNCTION OF SUPPLY VOLTAGE +25°C COMMON MODE INPUT VOLTAGE RANGE (V) SUPPLY CURRENT (µA) SUPPLY CURRENT AS A FUNCTION OF SUPPLY VOLTAGE -25°C 300 TA = -55°C 200 +125°C 100 +70°C ±6 TA = 25°C ±5 ±4 ±3 ±2 ±1 0 0 0 ±1 ±2 ±3 ±4 ±5 0 ±6 ±1 ±4 ±5 ±6 ±7 10000 100 10 VS = ±2.5V TA = 25°C INPUT BIAS CURRENT (pA) OPEN LOOP VOLTAGE GAIN (V/mV) 1000 VS = ±2.5V 1000 100 10 1.0 0.1 100K 1M 10M -50 -25 0 25 50 75 100 125 AMBIENT TEMPERATURE (°C) LOAD RESISTANCE (Ω) ALD1701A/ALD1701B ALD1701/ALD1701G ±3 INPUT BIAS CURRENT AS A FUNCTION OF AMBIENT TEMPERATURE OPEN LOOP VOLTAGE GAIN AS A FUNCTION OF LOAD RESISTANCE 1 10K ±2 SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) Advanced Linear Devices 4 of 9 TYPICAL PERFORMANCE CHARACTERISTICS (cont'd) OPEN LOOP VOLTAGE GAIN AS A FUNCTION OF SUPPLY VOLTAGE AND TEMPERATURE ±6 OUTPUT VOLTAGE SWING (V) OPEN LOOP VOLTAGE GAIN (V/mV) 1000 OUTPUT VOLTAGE SWING AS A FUNCTION OF SUPPLY VOLTAGE 100 10 -55°C ≤ TA ≤ +125°C RL = 100KΩ ±4 ±3 ±2 ±1 1 0 ±2 ±4 ±6 0 ±8 ±1 ±2 ±3 ±4 ±5 ±6 ±7 SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) INPUT OFFSET VOLTAGE AS A FUNCTION OF AMBIENT TEMPERATURE REPRESENTATIVE UNITS OPEN LOOP VOLTAGE GAIN AS A FUNCTION OF FREQUENCY 120 OPEN LOOP VOLTAGE GAIN (dB) +5 +4 VS = ±2.5V +3 +2 +1 0 -1 -2 VS = ±2.5V TA = 25°C 100 -3 -4 80 60 0 40 45 20 90 0 135 180 -20 1 -5 -50 -25 0 +25 +50 +75 10 +100 +125 100 1K 10K 100K FREQUENCY (Hz) 1M PHASE SHIFT IN DEGREES INPUT OFFSET VOLTAGE (mV) -55°C ≤ TA ≤ +125°C RL = 100KΩ ±5 10M AMBIENT TEMPERATURE (°C) INPUT OFFSET VOLTAGE (mV) INPUT OFFSET VOLTAGE AS A FUNCTION OF COMMON MODE INPUT VOLTAGE LARGE - SIGNAL TRANSIENT RESPONSE 15 VS = ±2.5V TA = 25°C 10 2V/div VS = ±1.0V TA = 25°C RL = 100KΩ CL = 50pF 500mV/div 5µs/div 5 0 -5 -10 -15 -2 -1 0 +1 +2 +3 COMMON MODE INPUT VOLTAGE (V) LARGE - SIGNAL TRANSIENT RESPONSE SMALL - SIGNAL TRANSIENT RESPONSE 5V/div VS = ±2.5V TA = 25°C RL = 100KΩ CL = 50pF 100mV/div VS = ±2.5V TA = 25°C RL = 100KΩ CL = 50pF 2V/div 5µs/div 20mV/div 2µs/div ALD1701A/ALD1701B ALD1701/ALD1701G Advanced Linear Devices 5 of 9 TYPICAL APPLICATIONS RAIL-TO-RAIL VOLTAGE FOLLOWER/BUFFER RAIL-TO-RAIL VOLTAGE COMPARATOR +5V 5V ~ 1012Ω ZIN = VIN 0.1µF - 0.1µF - +5V OUTPUT + VIN 10M 0≤ VIN ≤ 5V * See Rail to Rail Waveform HIGH INPUT IMPEDANCE RAIL-TO-RAIL PRECISION DC SUMMING AMPLIFIER + V2 RAIL-TO-RAIL WAVEFORM +2.5V 10M V1 OUTPUT + 50K 10M INPUT - 0V 0.1µF +5V OUTPUT 0V VOUT 10M 10M +5V 0.1µF V3 V- ≤ VIN ≤ V+ - 2.5V V4 V- ≤ VOUT ≤ V+ 10M VOUT = V1 + V2 - V3 - V4 Performance waveforms. Upper trace is the output of a Wien Bridge Oscillator. Lower trace is the output of Rail-to-rail voltage follower. 10M RIN = 10MΩ Accuracy limited by resistor tolerances and input offset voltage WIEN BRIDGE OSCILLATOR (RAIL-TO-RAIL) SINE WAVE GENERATOR PHOTO DETECTOR CURRENT TO VOLTAGE CONVERTER RF = 5M +2.5V - I OUTPUT + + -2.5V 10K R = 10K f =~ VOUT = I x RF PHOTODIODE 10K .01µF C = .01µF +2.5V - 10K -2.5V 1 2πRC RL = 10K ~ 1.6KHz * See Rail to Rail Waveform LOW VOLTAGE INSTRUMENTATION AMPLIFIER V+ 0.1µF 1M + 100K - 500K V+ 100K V- 0.1µF 0.1µF - f max = 20KHz -40mV ≤ VIN ≤ 40mV VOUT 50K + V+ 0.1µF 1M V- 0.1µF V- 100K + V- ALD1701A/ALD1701B ALD1701/ALD1701G V+ 1M 100K 0.1µF 1M GAIN = 25 V- ≤ VOUT ≤ V+. All resistors are 1%. V+ = +1.0V, V- = -1.0V. Short circuit input current 1µA. Advanced Linear Devices 6 of 9 SOIC-8 PACKAGE DRAWING 8 Pin Plastic SOIC Package E Millimeters Dim S (45°) D A Min 1.35 Max 1.75 Min 0.053 Max 0.069 A1 0.10 0.25 0.004 0.010 b 0.35 0.45 0.014 0.018 C 0.18 0.25 0.007 0.010 D-8 4.69 5.00 0.185 0.196 E 3.50 4.05 0.140 0.160 1.27 BSC e A A1 e Inches 0.050 BSC H 5.70 6.30 0.224 0.248 L 0.60 0.937 0.024 0.037 ø 0° 8° 0° 8° S 0.25 0.50 0.010 0.020 b S (45°) H L ALD1701A/ALD1701B ALD1701/ALD1701G C ø Advanced Linear Devices 7 of 9 PDIP-8 PACKAGE DRAWING 8 Pin Plastic DIP Package Millimeters E E1 D S A2 A1 e b A L Dim Min Max Min Max A 3.81 5.08 0.105 0.200 A1 0.38 1.27 0.015 0.050 A2 1.27 2.03 0.050 0.080 b 0.89 1.65 0.035 0.065 b1 0.38 0.51 0.015 0.020 c 0.20 0.30 0.008 0.012 D-8 9.40 11.68 0.370 0.460 E 5.59 7.11 0.220 0.280 E1 7.62 8.26 0.300 0.325 e 2.29 2.79 0.090 0.110 e1 7.37 7.87 0.290 0.310 L 2.79 3.81 0.110 0.150 S-8 1.02 2.03 0.040 0.080 0° 15° 0° 15° ø b1 Inches c e1 ALD1701A/ALD1701B ALD1701/ALD1701G ø Advanced Linear Devices 8 of 9 CERDIP-8 PACKAGE DRAWING 8 Pin CERDIP Package E E1 Millimeters D A1 s A L L2 b b1 e L1 Inches Dim A Min Max 3.55 5.08 Min 0.140 Max 0.200 A1 1.27 2.16 0.050 0.085 b 0.97 1.65 0.038 0.065 b1 0.36 0.58 0.014 0.023 C 0.20 0.38 0.008 0.015 D-8 -- 10.29 -- 0.405 E 5.59 7.87 0.220 0.310 E1 7.73 8.26 0.290 0.325 e 2.54 BSC 0.100 BSC e1 7.62 BSC 0.300 BSC L 3.81 5.08 0.150 0.200 L1 3.18 -- 0.125 -- L2 0.38 1.78 0.015 0.070 S -- 2.49 -- 0.098 Ø 0° 15° 0° 15° C e1 ALD1701A/ALD1701B ALD1701/ALD1701G ø Advanced Linear Devices 9 of 9