® OPA1013 Precision, Single-Supply DUAL OPERATIONAL AMPLIFIER FEATURES APPLICATIONS ● ● ● ● ● ● ● ● ● ● SINGLE POWER SUPPLY OPERATION INPUT VOLTAGE RANGE TO GROUND OUTPUT SWINGS NEAR GROUND LOW QUIESCENT CURRENT: 550µA max LOW VOS: 300µV max PRECISION INSTRUMENTATION BATTERY-POWERED EQUIPMENT BRIDGE AMPLIFIERS 4-20mA CURRENT TRANSMITTERS VOLTAGE COMPARATOR ● LOW DRIFT: 2.5µV/°C max ● LOW IOS: 1.5nA max ● LOW NOISE: 0.55µVp-p, 0.1Hz to 10Hz DESCRIPTION The OPA1013 dual operational amplifier provides precision performance in single power supply and low power applications. It is laser trimmed for low offset voltage and drift, greatly reducing the large errors common with LM324-type op amps. Input offset current is also trimmed to reduce errors in high impedance applications. The OPA1013 is characterized for operation at both +5V (single supply) and ±15V power supplies. When operated from a single supply, the input common-mode range includes ground and the output can swing to within 15mV of ground. Completely independent biasing networks eliminate interaction between the two amplifiers—even when one is used as a comparator. The OPA1013 is available in an 8-pin plastic DIP specified for the 0°C to +70°C temperature range. V+ 8 3.3µA Simplified Circuit (Half of Dual) 3.3µA 7.5µA 2nd Gain Stage 400Ω 0.9V 400Ω 22Ω Out 1, 7 In – 2, 6 In + 3, 5 22Ω V– 4 International Airport Industrial Park • Mailing Address: PO Box 11400 Tel: (520) 746-1111 • Twx: 910-952-1111 • Cable: BBRCORP • • Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706 Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132 © 1990 Burr-Brown Corporation PDS-1059F Printed in U.S.A. December, 1994 SPECIFICATIONS ELECTRICAL VS = ±15V, VCM = 0V, TA = +25°C unless otherwise noted. OPA1013CN8 PARAMETER CONDITION Input Offset Voltage Time Stability Input Offset Current Input Bias Current Voltage Noise, BW = 0.1 to 10Hz Noise Density, f = 10Hz f = 1kHz Current Noise Density, f = 10Hz Input Resistance: Differential Input Resistance: Common-Mode Open-Loop Voltage Gain 70 VO = ±10V, RL = 2kΩ VO = ±10V, RL = 600Ω Common-Mode Input Range Common-Mode Rejection Power Supply Rejection Channel Separation Voltage Output Slew Rate Quiescent Current (per amplifier) MIN VCM = +13.5 to –15V VS = ±2 to ±18V VO = ±10V, RL = 2kΩ RL = 2kΩ 1.2 0.5 +13.5 –15 97 100 120 ±12.5 0.2 OPA1013DN8 TYP MAX ±50 0.5 ±0.08 7 0.55 28 25 0.12 300 4 2.9 1.9 +13.8 –15.3 114 117 137 ±14 0.35 ±0.35 ±300 MIN ±1.5 30 * * * * * * * * * * ±0.55 TYP MAX UNITS ±200 * * * * * * * * * * * * * * * * * * * ±800 * µV µV/Mo nA nA µVp-p nV/√Hz nV/√Hz pA/√Hz MΩ GΩ V/µV V/µV V V dB dB dB V V/µs mA TYP MAX UNITS ±250 * * * ±950 * * µV nA nA V/µV * * *Specification same as OPA1013CN8. VS = +5V/0V, VCM = 0V, VO = +1.4V, TA = +25°C unless otherwise noted. OPA1013CN8 PARAMETER CONDITION Input Offset Voltage Input Offset Current Input Bias Current Open-Loop Voltage Gain VO = 5mV to 4V RL = 500Ω Common-Mode Input Range Voltage Output Low Low Low High High Quiescent Current (per amplifier) MIN +3.5 0 No Load RL = 600Ω to Ground ISINK = 1mA No Load RL = 600Ω to Ground MAX ±90 ±3.0 10 0.1 ±450 ±2.0 50 +3.8 –0.3 15 5 200 4.4 4 0.33 4 3.4 OPA1013DN8 TYP MIN * * 25 10 350 * * 0.5 * * * * * * * * * V V mV mV mV V V mA TYP MAX UNITS ±230 ±280 0.7 * * * * * * * * * * * * ±1000 ±1200 5 * * * * µV µV µV/°C nA nA nA nA V/µV dB dB V mV V mA mA * * * *Specification same as OPA1013CN8. TA = 0°C to +70°C, VS = ±15V, VCM = 0V unless otherwise noted. OPA1013CN8 PARAMETER CONDITION MIN Input Offset Voltage VS = +5/0V, VO = +1.4V Input Offset Voltage Drift(1) Input Offset Current VS = +5/0V, VO = +1.4V Input Bias Current Open-Loop Voltage Gain Common-Mode Rejection Power Supply Rejection Voltage Output VO Low VO High Quiescent Current (per amplifier) VS = +5/0V, VO = +1.4V VO = ±10V, RL = 2kΩ VCM = +13 to –15V VS = ±2 to ±18V RL = 2kΩ VS = +5/0V, RL = 600Ω VS = +5/0V, RL = 600Ω 0.7 94 97 ±12.0 3.2 VS = +5/0V, VO = +1.4V TYP MAX ±80 ±110 0.4 ±0.3 ±0.5 9 13 2.2 113 116 ±13.9 6 3.9 ±0.37 0.34 ±400 ±570 2.5 ±2.8 ±6 38 90 *Specification same as OPA1013CN8. NOTE: (1) Guaranteed by design. This specification is established to a 98% confidence level. ® OPA1013 2 OPA1013DN8 MIN * * * * 13 * ±0.6 0.55 * * * DICE INFORMATION 4 PAD FUNCTION 1 2 3 4 5 6 7 8 Output A –In A +In A V– +In B –In B Output B V+ Substrate Bias: –VS MECHANICAL INFORMATION Die Size Die Thickness Min. Pad Size MILS (0.001") MILLIMETERS 112 x 100 ±5 20 ±3 4x4 2.84 x 2.54 ±0.13 0.51 ±0.08 0.10 x 0.10 Transistor Count Backing 92 Gold OPA1013 DIE TOPOGRAPHY ABSOLUTE MAXIMUM RATINGS CONNECTION DIAGRAM Power Supply Voltage ....................................................................... ±22V Differential Input Voltage ................................................................... ±30V Input Voltage ...................................................................... V+ to (V–) –5V Output Short Circuit (TA = 25°C) ............................................. Continuous Operating Temperature: ....................................................... 0°C to +70°C Storage Temperature .......................................................... –65 to +150°C Lead Temperature (soldering, 10s) ............................................... +300°C N8 — Plastic Package — Top View Out A 1 8 V+ 7 Out B 6 –In B –In A 2 – + A ORDERING INFORMATION + B +In A V– 3 4 – 5 +In B MODEL PACKAGE TEMPERATURE RANGE OPA1013CN8 OPA1013DN8 Plastic DIP Plastic DIP 0°C to +70°C 0°C to +70°C PACKAGE INFORMATION MODEL PACKAGE PACKAGE DRAWING NUMBER(1) OPA1013CN8 OPA1013DN8 Plastic DIP Plastic DIP 006 006 NOTE: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix D of Burr-Brown IC Data Book. 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. ® 3 OPA1013 TYPICAL PERFORMANCE CURVES TA = +25°C unless otherwise noted. OFFSET VOLTAGE vs BALANCED SOURCE RESISTANCE OFFSET VOLTAGE vs TEMPERATURE 10 + Input Offset Voltage (mV) Offset Voltage (µV) R VS = ±15V 200 100 0 –100 –200 6 Representative Devices –50 –25 0 25 R V S = 5V/0V, 25°C 0.1 V S = ±15V, 25°C 0.01 50 75 100 1k 125 3k 10k 30k 100k 300k 1M 3M Temperature (°C) Balanced Source Resistor (Ω) OFFSET VOLTAGE vs TIME COMMON-MODE REJECTION RATIO vs FREQUENCY 5 10M 120 Common-Mode Rejection Ratio (dB) Changes in Offset Voltage (µV) – 1 VS = ±15V 4 3 2 Plastic DIP N8 Package 1 0 100 V = ±15V 80 V = 5V/0V 60 40 20 0 1 0 2 3 4 5 10 100 1k 10k Time After Power On (Minutes) Frequency (Hz) POWER SUPPLY REJECTION RATIO vs FREQUENCY 0.1Hz TO 10Hz NOISE 100k 1M 8 10 VS = ±2V to ±18V 100 Noise Voltage (200nV/Div) Power Supply Rejection Ratio (dB) 120 Negative Supply 80 Positive Supply 60 40 20 0 0.1 1 10 100 1k 10k 100k 0 1M ® OPA1013 2 4 6 Time (s) Frequency (Hz) 4 TYPICAL PERFORMANCE CURVES (CONT) TA = +25°C unless otherwise noted. NOISE DENSITY vs FREQUENCY 10Hz VOLTAGE NOISE DISTRIBUTION 200 1000 = ±2V to ±18V VS = ±15V 340 units tested from three runs. 180 160 300 Number of Units Current Noise 100 30 140 120 100 80 60 40 Voltage Noise 20 10 0 1 10 100 1k 20 10 Frequency (Hz) Common-Mode Input Voltage, VS = ±15V (V) SUPPLY CURRENT vs TEMPERATURE Supply Current per Amplifier (µA) 460 VS = ±15V 420 380 VS = 5V/0V 340 300 260 –50 –25 0 25 50 30 60 75 100 15 5 10 4 5 3 2 0 VS = ±15V VS = 5V/0V –5 1 –10 0 –1 –15 0 125 –5 –10 –15 –20 –25 –30 Input Bias Current (nA) INPUT BIAS CURRENT vs TEMPERATURE INPUT OFFSET CURRENT vs TEMPERATURE –30 VCM = 0V –25 –0.8 VS = 5V/0V Input Bias Current (nA) Input Offset Current (nA) 50 INPUT BIAS CURRENT vs COMMON-MODE VOLTAGE Temperature (°C) –1 40 Voltage Noise Density (nV/ Hz) Common-Mode Input Voltage, VS = +5V, 0V (V) Voltage Noise Density (nV/ Hz) Current Noise Density (fA/ Hz) V V = ±2.5V –0.6 VS = ±15V –0.4 –0.2 VCM = 0V –20 –15 V S = ±2.5V V S = 5V/0V –10 –5 V S = ±15V 0 0 –50 –25 0 25 50 75 100 –50 125 –25 0 25 50 75 100 125 Temperature (°C) Temperature (°C) ® 5 OPA1013 TYPICAL PERFORMANCE CURVES (CONT) TA = +25°C unless otherwise noted. OUTPUT SATURATION AND SINK CURRENT vs TEMPERATURE Output Short Circuit Current ISINK = 10mA 1 ISINK = 5mA ISINK = 1mA 0.1 ISINK = 100µA ISINK = 10µA ISINK = 0 0.01 –50 –25 0 25 50 50 25°C 30 70°C 10 0 –10 –20 70°C –30 25°C –40 0°C –50 75 100 0 125 1 3 VOLTAGE GAIN vs FREQUENCY VOLTAGE GAIN vs LOAD RESISTANCE 140 VO = ±10V with VS = ±15V VO = 20mV to 3.5V 120 with VS = 5V/0V 100 Voltage Gain (dB) Voltage Gain 2 Time (Minutes) Temperature (°C) 10M VS = ±15V 0°C 40 20 Sinking Saturation Voltage (V) +V = 5V to 30V –V = 0V Sourcing OUTPUT SHORT CIRCUIT CURRENT vs TIME 10 (1) 1M CL = 100pF VS = ±15V 80 60 VS = 5V/0V 40 20 (2) 0 100k 100 1k –20 0.01 10k 0.1 1 Load Resistance to Ground (Ω ) NOTES: (1) TA = +25°C, VS = ±15V. (2) TA = +25°C, VS = 5V/0V. Phase 160 Gain VS = ±15V 180 VS = 5V/0V 200 Channel Separation (dB) 140 10 Phase Shift (Degrees) Voltage Gain (dB) 120 VS = 5V/0V 160 140 120 Limited by thermal interaction 240 1 10M RS =1k 100 80 Limited by pin-to-pin capacitance 60 10 10 Frequency (MHz) 100 1k 10k Frequency (Hz) ® OPA1013 1M RS =100Ω 220 –10 0.1 10k 100k VS = ±15V VIN = 20Vp-p to 5kHz RL = 2kΩ 100 CL = 100pF 0 1k CHANNEL SEPARATION vs FREQUENCY 80 VCM = 0V VS = ±15V 100 Frequency (Hz) GAIN AND PHASE vs FREQUENCY 20 10 6 100k 1M TYPICAL PERFORMANCE CURVES (CONT) LARGE SIGNAL TRANSIENT RESPONSE VS = ±15V, G = +1 SMALL SIGNAL TRANSIENT RESPONSE VS = ±15V, G = +1 +50mV +10V 0V 0mV –10V –50mV VS = 5V/0V SMALL SIGNAL TRANSIENT RESPONSE VS = 5V/0V, G = +1, RL = 600Ω to Ground LARGE SIGNAL TRANSIENT RESPONSE VS = 5V/0V, G = +1, RL = 4.7kV to 5V 4V 100mV 50mV FPO 2V FPO 0V 0mV Input = 0V to 4V Pulse COMPARATOR RISE RESPONSE TIME 10mV, 5mV, 2mV Overdrives LARGE SIGNAL TRANSIENT RESPONSE VS = 5V/0V, G = +1, No Load 4 4V Output (V) 2 2V 0 0 0V Input (mV) –100 Input = 0V to 4V Pulse VS = 5V/0V ® 7 OPA1013 TYPICAL PERFORMANCE CURVES (CONT) COMPARATOR FALL RESPONSE TIME 10mV, 5mV, 2mV Overdrives 4 Output (V) 2 0 100 Input (mV) 0 VS = 5V/0V APPLICATIONS INFORMATION INPUT PROTECTION The circuitry of the OPA1013 is protected against overload for input voltages ranging from the positive supply voltage to 5V below the negative supply voltage (below ground in single supply operation). No external protection circuitry is required, as it is with other common single-supply op amps. The OPA1013 is unity-gain stable, making it easy to use and free from oscillations in the widest range of circuitry. Follow good design practice by bypassing the power supplies close to the op amp pins. In most cases 0.1µF ceramic capacitors are adequate. Furthermore, the OPA1013 is free from phase-reversal problems common with other single-supply op amps. When the inputs are driven below ground (or below the negative power supply), the output polarity remains correct. SINGLE POWER SUPPLY OPERATION The OPA1013 is specified for operation from a single power supply. This means that linear operation continues with the input terminals at (or even somewhat below) ground potential. When used in a non-inverting amplifier, 0V input must produce 0V output. In practice, the output swing is limited to approximately 15mV above ground with no load. Output swing near ground can be optimized when the output load is connected to ground. If the output must sink current, the ability to swing near ground will be diminished. The output swings to within approximately 200mV of ground when sinking 1mA. COMPARATOR OPERATION The OPA1013 functions well as a comparator, where high speed is not required. Sometimes, in fact, the low offset and docile characteristics of the OPA1013 may simplify the design of comparator circuitry. The two op amps in the OPA1013 use completely independent bias circuitry to avoid interaction when the inputs are over-driven. Driving one op amp into saturation will not affect the characteristics of the other amplifier. The outputs of the OPA1013 can drive one TTL load. Quiescent current remains stable when the inputs are overdriven. +VS 0-4mA In 0-4mA Out R3 100Ω + 1/2 OPA1013 – R1 500Ω C1 0.001µF R4 500Ω To Ground or –VS FIGURE 1. Precision Current Mirror. ® OPA1013 8 N channel enhancement MOSFET Supertex, Siliconix, Motorola, etc. or 2 x 2N2222 R2 50Ω V+ – V1 + – 7 5 1/2 OPA1013 2 – 6 + 3 VO VO = V2 – V1 1 – Input common-mode range extends to approximately 150mV above V– supply — limited by OPA1013 output swing. INA105 V2 + + 4 1/2 OPA1013 V– FIGURE 2. Instrumentation Amplifier. V+ 7 8 REF200 100µA 1 5 2 1/2 OPA1013 2 6 3 V1 Input V2 – PMI MAT03 VO VO = V2 – V1 1 + 1/2 OPA1013 V– INA105 Input common-mode range extends to approximately 200mV below V– supply. FIGURE 3. Instrumentation Amplifier. V+ VI (+100mV) REF200 100µA (–100mV) V+ Output 1kΩ 1/2 OPA1013 Output TTL or CMOS 1kΩ 1/2 OPA1013 VI NOTE: VI must sink 100µA. FIGURE 4. Window Comparator. ® 9 OPA1013