OPA2336UA

® OPA 336 OPA 433 6 OPA 2336 OPA336 OPA2336 OPA4336 SINGLE-SUPPLY, MicroPOWER CMOS OPERATIONAL AMPLIFIERS MicroAmplifier ™ Series FEATURES q SINGLE SUPPLY OPERATION q RAIL-TO-RAIL OUTPUT (within 3mV) q MicroPOWER: IQ = 20µA/Amplifier q MicroSIZE PACKAGES q LOW OFFSET VOLTAGE: 125µV max q SPECIFIED FROM VS = 2.3V to 5.5V q SINGLE, DUAL, AND QUAD VERSIONS(1) DESCRIPTION OPA336 series micropower CMOS operational amplifiers are designed for battery powered applications. They operate on a single supply with operation as low as 2.1V. The output is rail-to-rail and swings to within 3mV of the supplies with a 100kΩ load. The commonmode range extends to the negative supply—ideal for single-supply applications. Single, dual, and quad versions have identical specifications for maximum design flexibility. In addition to small size and low quiescent current (20µA/amplifier), they feature low offset voltage (125µV max), low input bias current (1pA), and high open-loop gain (115dB). Dual and quad designs feature completely independent circuitry for lowest crosstalk and freedom from interaction. OPA336 packages are the tiny 5-lead SOT-23-5 surface mount, SO-8 surface-mount, and 8-pin DIP. OPA2336 comes in the miniature MSOP-8 surface-mount, SO-8 surface-mount, and 8-pin DIP packages. OPA4336 packages are the space-saving SSOP-16 surface-mount and the 14-pin DIP. All are specified from –40°C to +85 °C and operate from –55 °C to +125°C. A macromodel is available for design analysis. APPLICATIONS q BATTERY POWERED INSTRUMENTS q PORTABLE DEVICES q HIGH IMPEDANCE APPLICATIONS q PHOTODIODE PRE-AMPS q PRECISION INTEGRATORS q MEDICAL INSTRUMENTS q TEST EQUIPMENT OPA336 Out V– +In 1 2 3 4 –In 5 V+ NC –In +In V– 1 2 3 4 OPA336 8 7 6 5 8-Pin DIP, SO-8 NC V+ Output NC Out A –In A +In A V– 1 2 3 4 OPA2336 8 A B 7 6 5 V+ Out B –In B +In B SOT-23-5 8-Pin DIP, SO-8, MSOP-8 International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111 Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132 © 1997 Burr-Brown Corporation PDS-1380C Printed in U.S.A. August, 1997 SPECIFICATIONS: VS = 2.3V to 5.5V At TA = +25°C, and RL = 25kΩ connected to VS/2, unless otherwise noted. Boldface limits apply over the specified temperature range, –40°C to +85°C. VS = +5V. OPA336NA, PA, UA OPA2336EA, PA, UA OPA4336EA, PA MIN TYP(1) T D T T ±10 ±60 ±10 T T T T T (V+) –1 90 T 76 74 T 86 T D T MAX ±500 T D UNITS µV µV/°C µV/V µV/V µV/V pA pA pA µVp-p nV/√Hz fA/√Hz V dB dB Ω || pF Ω || pF dB dB dB dB kHz V/µs µs mV mV mV mV mV mA pF V V µA µA °C °C °C °C/W °C/W °C/W °C/W °C/W °C/W OPA336N, P, U OPA2336E, P, U PARAMETER OFFSET VOLTAGE Input Offset Voltage vs Temperature vs Power Supply TA = –40°C to +85°C Channel Separation, dc INPUT BIAS CURRENT Input Bias Current TA = –40°C to +85°C Input Offset Current NOISE Input Voltage Noise, f = 0.1 to 10Hz Input Voltage Noise Density, f = 1kHz Current Noise Density, f = 1kHz INPUT VOLTAGE RANGE Common-Mode Voltage Range Common-Mode Rejection Ratio TA = –40°C to +85°C INPUT IMPEDANCE Differential Common-Mode OPEN-LOOP GAIN Open-Loop Voltage Gain TA = –40°C to +85°C TA = –40°C to +85°C FREQUENCY RESPONSE Gain-Bandwidth Product Slew Rate Overload Recovery Time OUTPUT Voltage Output Swing from Rail(2) TA = –40°C to +85°C TA = –40°C to +85°C Short-Circuit Current Capacitive Load Drive POWER SUPPLY Specified Voltage Range Minimum Operating Voltage Quiescent Current (per amplifier) TA = –40°C to +85°C TEMPERATURE RANGE Specified Range Operating Range Storage Range Thermal Resistance SOT-23-5 Surface-Mount MSOP-8 Surface-Mount SO-8 Surface-Mount 8-Pin DIP SSOP-16 Surface-Mount 14-Pin DIP GBW SR AOL RL = 25kΩ, 100mV < VO < (V+) –100mV RL = 25kΩ, 100mV < VO < (V+) –100mV RL = 5kΩ, 500mV < VO < (V+) –500mV RL = 5kΩ, 500mV < VO < (V+) –500mV VS = 5V, G = 1 VS = 5V, G = 1 VIN • G = VS RL = 100kΩ, AOL ≥ 70dB RL = 25kΩ, AOL ≥ 90dB RL = 25kΩ, AOL ≥ 90dB RL = 5kΩ, AOL ≥ 90dB RL = 5kΩ, AOL ≥ 90dB ISC CLOAD VS IQ IO = 0 IO = 0 –40 –55 –55 2.3 2.1 20 100 100 90 90 VOS dVOS/dT PSRR CONDITION MIN TYP(1) ±60 25 0.1 IB IOS ±1 ±1 3 40 30 –0.2 80 76 MAX ±125 100 130 ±1.5 VS = 2.3V to 5.5V VS = 2.3V to 5.5V en in VCM CMRR –0.2V < VCM < (V+) –1V –0.2V < VCM < (V+) –1V 1013 || 2 1013 || 4 115 106 90 90 T D T T T T 100 0.03 100 3 20 70 ±5 See Text 5.5 32 36 +85 +125 +125 200 150 150 100 100 80 T T T T T T T T T T T T T T T T D T T T T T T T T T 100 100 500 500 T D T D θJA TSpecifications same as OPA2336E, P, U. NOTES: (1) VS = +5V. (2) Output voltage swings are measured between the output and positive and negative power supply rails. The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant any BURR-BROWN product for use in life support devices and/or systems. ® OPA336, 2336, 4336 2 PIN CONFIGURATIONS Top View OPA4336 DIP Top View OPA4336 Out A 1 2 A +In A 3 4 5 B –In B 6 7 8 C 11 10 9 –In C Out C NC D 14 13 12 +In D V– +In C 16 15 Out D –In D SSOP Out A –In A +In A V+ +In B –In B Out B 1 2 A 3 4 5 B 6 7 C D 14 13 12 11 10 9 8 Out D –In A –In D +In D V+ V– +In B +In C –In C Out B Out C NC ABSOLUTE MAXIMUM RATINGS(1) Supply Voltage ................................................................................... 5.5V Signal Input Terminals, Voltage(2) .................... (V–) –0.3V to (V+) +0.3V Current(2) .................................................... 10mA Output Short-Circuit(3) .............................................................. Continuous Operating Temperature ................................................. –55°C to +125°C Storage Temperature ..................................................... –55°C to +125°C Junction Temperature ...................................................................... 150°C Lead Temperature (soldering, 10s) ................................................. 300°C NOTES: (1) Stresses above these ratings may cause permanent damage. (2) Input terminals are diode-clamped to the power supply rails. Input signals that can swing more than 0.3V beyond the supply rails should be currentlimited to 10mA or less. (3) Short-circuit to ground, one amplifier per package. ELECTROSTATIC DISCHARGE SENSITIVITY This integrated circuit can be damaged by ESD. Burr-Brown recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. PACKAGE/ORDERING INFORMATION PACKAGE DRAWING NUMBER(1) SPECIFIED TEMPERATURE RANGE –40°C to +85°C PACKAGE MARKING A36(3) ORDERING NUMBER(2) TRANSPORT MEDIA PRODUCT Single OPA336NA PACKAGE 5-Lead SOT-23-5 331 " OPA336N " 5-Lead SOT-23-5 " 331 " –40°C to +85°C " A36(3) " OPA336PA OPA336P OPA336UA OPA336U Dual OPA2336PA OPA2336P OPA2336UA OPA2336U OPA2336EA " OPA2336E " Quad OPA4336EA " OPA4336PA " 8-Pin DIP 8-Pin DIP SO-8 Surface-Mount SO-8 Surface-Mount 8-Pin DIP 8-Pin DIP SO-8 Surface-Mount SO-8 Surface-Mount MSOP-8 Surface-Mount " MSOP-8 Surface-Mount " SSOP-16 Surface-Mount " 14-Pin DIP " 006 006 182 182 006 006 182 182 337 " 337 " 322 " 010 –40°C –40°C –40°C –40°C –40°C –40°C –40°C –40°C " to to to to to to to to +85°C +85°C +85°C +85°C +85°C +85°C +85°C +85°C " OPA336PA OPA336P OPA336UA OPA336U OPA2336PA OPA2336P OPA2336UA OPA2336U B36(3) " B36(3) " OPA4336EA " OPA4336PA OPA336NA-250 OPA336NA-3K OPA336N-250 OPA336N-3K OPA336PA OPA336P OPA336UA OPA336U OPA2336PA OPA2336P OPA2336UA OPA2336U OPA2336EA-250 OPA2336EA-2500 OPA2336E-250 OPA2336E-2500 OPA4336EA-250 OPA4336EA-2500 OPA4336PA Tape and Reel Tape and Reel Tape and Reel Tape and Reel Rails Rails Rails(4) Rails(4) Rails Rails Rails(4) Rails(4) Tape Tape Tape Tape and and and and Reel Reel Reel Reel –40°C to +85°C " –40°C to +85°C " –40°C to +85°C " –40°C to +85°C Tape and Reel Tape and Reel Rails NOTES: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book. (2) Models with -250, -2500, and -3K are available only in Tape and Reel in the quantities indicated (e.g., -250 indicates 250 devices per reel). Ordering 3000 pieces of “OPA336NA-3K” will get a single 3000 piece Tape and Reel. For detailed Tape and Reel mechanical information, refer to Appendix B of Burr-Brown IC Data Book. (3) Grade will be marked on the Reel. (4) SO-8 models also available in Tape and Reel. ® 3 OPA336, 2336, 4336 TYPICAL PERFORMANCE CURVES At TA = +25°C, VS = +5V, and RL = 25kΩ connected to VS/2, unless otherwise noted. OPEN-LOOP GAIN/PHASE vs FREQUENCY 100 80 Voltage Gain (dB) POWER SUPPLY and COMMON-MODE REJECTION RATIO vs FREQUENCY 100 CMRR G 0 –45 Phase (°) PSRR, CMRR (dB) 80 60 40 20 0 –20 1 10 100 1k Frequency (Hz) 10k 100k 1M 60 PSRR 40 Φ –90 –135 –180 20 0 1 10 100 1k 10k 100k Frequency (Hz) QUIESCENT CURRENT vs SUPPLY VOLTAGE 30 Per Amplifier 25 Quiescent Current (µA) QUIESCENT CURRENT vs TEMPERATURE 30 Per Amplifier VS = +5V 25 Quiescent Current (µA) 20 15 10 5 20 VS = +2.3V 15 10 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Supply Voltage (V) 0 –75 –50 –25 0 25 50 75 100 125 Temperature (°C) SHORT-CIRCUIT CURRENT vs SUPPLY VOLTAGE ±6 ±5 ±4 ±3 ±2 –ISC ±1 0 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Supply Voltage (V) +ISC 8 7 SHORT-CIRCUIT CURRENT vs TEMPERATURE Short-Circuit Current (mA) Short-Circuit Current (mA) VS = +5V –ISC 6 5 4 3 2 1 0 –75 –50 –25 0 25 50 75 100 125 Temperature (°C) +ISC +ISC VS = +2.3V –ISC ® OPA336, 2336, 4336 4 TYPICAL PERFORMANCE CURVES (CONT) At TA = +25°C, VS = +5V, and RL = 25kΩ connected to VS/2, unless otherwise noted. INPUT VOLTAGE AND CURRENT NOISE SPECTRAL DENSITY vs FREQUENCY 1k Voltage Noise Voltage Noise (nV/√Hz) Current Noise (fA/√Hz) CHANNEL SEPARATION vs FREQUENCY 1k 150 Channel Separation (dB) 140 100 100 130 Dual and Quad devices, G = 1, all channels. Quad measured channel A to D or B to C—other combinations yield improved rejection. 100 1k Frequency (Hz) 10 10 120 Current Noise 1 1 10 100 1k 10k 100k Frequency (Hz) 110 10k 100k MAXIMUM OUTPUT VOLTAGE vs FREQUENCY 6 5 VS = +5.5V 120 AOL, CMRR, PSRR vs TEMPERATURE AOL 4 3 VS = +2.3V 2 1 0 100 1k Frequency (Hz) 10k 100k AOL, CMRR, PSRR (dB) 110 Output Voltage (Vp-p) 100 PSRR 90 CMRR 80 70 –75 –50 –25 0 25 50 75 100 125 Temperature (°C) OFFSET VOLTAGE PRODUCTION DISTRIBUTION 25 Typical production distribution of packaged units. 25 OFFSET VOLTAGE DRIFT MAGNITUDE PRODUCTION DISTRIBUTION Typical production distribution of packaged units. Percent of Amplifiers (%) 15 Percent of Amplifiers (%) 0.2% 0.1% 20 20 15 10 10 5 0.1% 0.3% 5 0 0 0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.25 2.5 2.75 3 3.25 3.5 3.75 –500 –400 –300 –200 –100 0 100 200 300 400 Offset Voltage (µV) 500 Offset Voltage Drift (µV/°C) 4 ® 5 OPA336, 2336, 4336 TYPICAL PERFORMANCE CURVES (CONT) At TA = +25°C, VS = +5V, and RL = 25kΩ connected to VS/2, unless otherwise noted. INPUT BIAS CURRENT vs TEMPERATURE 1k 4 INPUT BIAS CURRENT vs INPUT COMMON-MODE VOLTAGE Input Bias Current (pA) 100 Input Bias Current (pA) 3 VS = +5V 2 10 1 1 0.1 –75 –50 –25 0 25 50 Temperature (°C) 75 100 125 0 0 1 2 3 Common-Mode Voltage (V) 4 5 OUTPUT VOLTAGE SWING vs OUTPUT CURRENT 5 –2.5 OUTPUT VOLTAGE SWING vs OUTPUT CURRENT VS = +5V 4 VS = ±2.5V –2.0 Output Voltage (V) Output Voltage (V) Sourcing Current 3 –55°C +25°C +125°C Sinking Current –1.5 +125°C –1.0 –55°C –0.5 +25°C VS = +2.3V 2 –55°C 1 +25°C 0 0 1 2 3 4 5 Output Current (mA) 6 7 8 +125°C 0 –0 –1 –2 –3 –4 –5 Output Current (mA) –6 –7 –8 SMALL-SIGNAL STEP RESPONSE G = 1, CL = 200pF, VS = +5V LARGE-SIGNAL STEP RESPONSE G = 1, CL = 620pF, VS = +5V 500mV/div 20mV/div 50µs/div 200µs/div ® OPA336, 2336, 4336 6 APPLICATIONS INFORMATION OPA336 series op amps are fabricated on a state-of-the-art 0.6 micron CMOS process. They are unity-gain stable and suitable for a wide range of general purpose applications. Power supply pins should be bypassed with 0.01µF ceramic capacitors. OPA336 series op amps are protected against reverse battery voltages. OPERATING VOLTAGE OPA336 series op amps can operate from a +2.1V to +5.5V single supply with excellent performance. Most behavior remains unchanged throughout the full operating voltage range. Parameters which vary significantly with operating voltage are shown in the typical performance curves. OPA336 series op amps are fully specified for operation from +2.3V to +5.5V; a single limit applies over the supply range. In addition, many parameters are guaranteed over the specified temperature range, –40°C to +85°C. INPUT VOLTAGE The input common-mode range of OPA336 series op amps extends from (V–) –0.2V to (V+) –1V. For normal operation, inputs should be limited to this range. The absolute maximum input voltage is 300mV beyond the supplies. Thus, inputs greater than the input common-mode range but less than maximum input voltage, while not valid, will not cause any damage to the op amp. Furthermore, the inputs may go beyond the power supplies without phase inversion (Figure 1) unlike some other op amps. IOVERLOAD 10mA max VIN 5kΩ +5V OPAx336 VOUT FIGURE 2. Input Current Protection for Voltages Exceeding the Supply Voltage. CAPACITIVE LOAD AND STABILITY OPA336 series op amps can drive a wide range of capacitive loads. However, all op amps under certain conditions may become unstable. Op amp configuration, gain, and load value are just a few of the factors to consider when determining stability. When properly configured, OPA336 series op amps can drive approximately 10,000pF. An op amp in unity gain configuration is the most vulnerable to capacitive load. The capacitive load reacts with the op amp’s output resistance, along with any additional load resistance, to create a pole in the response which degrades the phase margin. In unity gain, OPA336 series op amps perform well with a pure capacitive load up to about 300pF. Increasing gain enhances the amplifier’s ability to drive loads beyond this level. One method of improving capacitive load drive in the unity gain configuration is to insert a 50Ω to 100Ω resistor inside the feedback loop as shown in Figure 3. This reduces ringing with large capacitive loads while maintaining DC accuracy. 6V VIN VOUT RS 100Ω OPAx336 CL RL VOUT 0V FIGURE 3. Series Resistor in Unity-Gain Configuration Improves Capacitive Load Drive. RS = 100Ω, Load = 25kΩ || 1000pF, VS = +5V FIGURE 1. No Phase Inversion with Inputs Greater than the Power Supply Voltage. Normally, input bias current is approximately 1pA. However, input voltages exceeding the power supplies can cause excessive current to flow in or out of the input pins. Momentary voltages greater than the power supply can be tolerated as long as the current on the input pins is limited to 10mA. This is easily accomplished with an input resistor as shown in Figure 2. 20mV/div 50µs/div FIGURE 4. Small-Signal Step Response Using Series Resistor to Improve Capacitive Load Drive. ® 7 OPA336, 2336, 4336 For example, with RL = 25kΩ, OPA336 series op amps perform well with capacitive loads in excess of 1000pF (Figure 4). Without RS, capacitive load drive is typically 350pF for these conditions (see Figure 5). Alternatively, the resistor may be connected in series with the output outside of the feedback loop. However, if there is a resistive load parallel to the capacitive load, it and the series resistor create a voltage divider. This introduces a DC error at the output. However, this error may be insignificant. For instance, with RL = 100kΩ and RS = 100Ω, there is only about a 0.1% error at the output. Figure 5 shows the recommended operating regions for the OPA336. Decreasing the load resistance generally improves capacitive load drive. Figure 5 also illustrates how stability differs depending on where the resistive load is connected. With G = +1 and RL = 10kΩ connected to VS/2, the OPA336 can typically drive 500pF. Connecting the same load to ground improves capacitive load drive to 1000pF. Capacitive Load (pF) VS = +5V, VO = VS/2 10k Operation Above Selected Gain Curve Not Recommended G = +1 RL to Ground 1k G = +2 RL to Ground G = +1 RL to VS/2 100 5 10 Resistive Load (kΩ) 100 FIGURE 5. Stability—Capacitive Load vs Resistive Load. ® OPA336, 2336, 4336 8