Datasheet LT1002 (Analog Devices) - 6
| Manufacturer | Analog Devices |
| Description | Dual, Matched Precision Operational Amplifier |
| Pages / Page | 16 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS. Matching and Individual Amplifier. … |
| File Format / Size | PDF / 188 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Matching and Individual Amplifier. Input Bias Current. Input Bias Current vs
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LT1002
W U TYPICAL PERFORMANCE CHARACTERISTICS Matching and Individual Amplifier Input Bias Current Input Bias Current vs. Bias and Offset Currents vs Temperature Over the Common Mode Range Differential Input Voltage
2.0 1.5 30 V V S = ±15V S = ±15V 1.8 – TA = 25°C 1.0 I + b 1.6 VCM 1.4 MATCHING: NON INVERTING 0.5 20 DEVICE WITH POSITIVE INPUT CURRENT 1.2 BIAS CURRENT 1.0 V M 0 S = ±15V A N T T I O C A = 25°C 0.8 N N HI D - N I I V N G: I V IN D . V U O E F R A F IN –.5 10 S G 0.6 & L ET A CU I M RR N E P NT D B I I V AS INPUT BIAS CURRENT (nA) DEVICE WITH NEGATIVE INPUT CURRENT INPUT BIAS CURRENT (mA) 0.4 ID CU U RR A E L N INVERTING OR NON-INVERTING T A –1.0 MP O COMMON-MODE I FF B ≈ 1 nA 0.2 INPUT BIAS AND OFFSET CURRENTS (nA) SET CURRENT 28V INPUT RESISTANCE = = 280GΩ 0.1nA 0 –1.5 0 –50 –25 0 25 50 75 100 125 –15 –10 –5 0 5 10 15 0.1 0.3 1.0 3.0 10 30 TEMPERATURE (°C) COMMON-MODE INPUT VOLTAGE ±DIFFERENTIAL INPUT (VOLTS) 1002 G12 1001 G10 1002 G11
Open Loop Voltage Gain Open Loop Voltage Gain vs Temperature Frequency Response Gain, Phase Shift vs. Frequency
140 20 80 1200k 120 V) 16 PHASE 25°C 100 TA = 25°C 100 1000k 12 120 VS = ±15V, VO = ±12V 80 25°C 800k V 8 140 S = ±15V PHASE 60 MARGIN 600k VS = ±3V, VO = ±1V 4 = 60° 160 GAIN 125°C 40 V GAIN 25°C & –55°C 400k S = ±3V VOLTAGE GAIN (dB) 0 180 20 PHASE SHIFT (DEGREES) VS = ±15V OPEN LOOP VOLTAGE GAIN (V/ OPEN LOOP VOLTAGE GAIN (dB) 200k 200 0 –4 PHASE MARGIN –55°C = 63° 125°C = 57° 0 –20 –8 220 –50 –25 0 25 50 75 100 125 0.1 1 10 100 1k 10k 100k 1M 10M 0.1 0.2 0.5 1 2 TEMPERATURE (°C) FREQUENCY (Hz) FREQUENCY (MHz) 1002 G13 1002 G15 1002 G14
Open Loop Gain Mismatch Power Supply Rejection and vs Frequency Closed Loop Output Impedance PSRR Match vs Frequency
1.0 100 160 VS = ±15V VS = ±15V ±2V pp TA = 25°C 140 TA = 25°C 0.8 ) 10 MATCH (NEGATIVE SUPPLY) Ω AV = 1000 120 100 0.6 1 80 AV = +1 0.4 0.1 NEGATIVE SUPPLY 60 PERCENT GAIN MISMATCH = POSITIVE SUPPLY OUTPUT A – OUTPUT B OUTPUT IMPEDANCE ( IO = ±1mA 40 0.2 × 100% 0.01 MATCH (POSITIVE SUPPLY) 1/ V 2 (OUTPUT A + OUTPUT B) S = ±15V POWER SUPPLY REJECTION (dB) TA = 25°C 20 OPEN LOOP GAIN MISMATCH (PERCENT) 0 0.001 0 1 10 100 1k 10k 100k 1 10 100 1k 10k 100k 0.1 1 10 100 1k 10k 100k FREQUENCY (Hz) FREQUENCY (Hz) FREQUENCY (Hz) 1002 G16 1002 G17 1002 G18 1002fb 6
W U TYPICAL PERFORMANCE CHARACTERISTICS Matching and Individual Amplifier Input Bias Current Input Bias Current vs. Bias and Offset Currents vs Temperature Over the Common Mode Range Differential Input Voltage
2.0 1.5 30 V V S = ±15V S = ±15V 1.8 – TA = 25°C 1.0 I + b 1.6 VCM 1.4 MATCHING: NON INVERTING 0.5 20 DEVICE WITH POSITIVE INPUT CURRENT 1.2 BIAS CURRENT 1.0 V M 0 S = ±15V A N T T I O C A = 25°C 0.8 N N HI D - N I I V N G: I V IN D . V U O E F R A F IN –.5 10 S G 0.6 & L ET A CU I M RR N E P NT D B I I V AS INPUT BIAS CURRENT (nA) DEVICE WITH NEGATIVE INPUT CURRENT INPUT BIAS CURRENT (mA) 0.4 ID CU U RR A E L N INVERTING OR NON-INVERTING T A –1.0 MP O COMMON-MODE I FF B ≈ 1 nA 0.2 INPUT BIAS AND OFFSET CURRENTS (nA) SET CURRENT 28V INPUT RESISTANCE = = 280GΩ 0.1nA 0 –1.5 0 –50 –25 0 25 50 75 100 125 –15 –10 –5 0 5 10 15 0.1 0.3 1.0 3.0 10 30 TEMPERATURE (°C) COMMON-MODE INPUT VOLTAGE ±DIFFERENTIAL INPUT (VOLTS) 1002 G12 1001 G10 1002 G11
Open Loop Voltage Gain Open Loop Voltage Gain vs Temperature Frequency Response Gain, Phase Shift vs. Frequency
140 20 80 1200k 120 V) 16 PHASE 25°C 100 TA = 25°C 100 1000k 12 120 VS = ±15V, VO = ±12V 80 25°C 800k V 8 140 S = ±15V PHASE 60 MARGIN 600k VS = ±3V, VO = ±1V 4 = 60° 160 GAIN 125°C 40 V GAIN 25°C & –55°C 400k S = ±3V VOLTAGE GAIN (dB) 0 180 20 PHASE SHIFT (DEGREES) VS = ±15V OPEN LOOP VOLTAGE GAIN (V/ OPEN LOOP VOLTAGE GAIN (dB) 200k 200 0 –4 PHASE MARGIN –55°C = 63° 125°C = 57° 0 –20 –8 220 –50 –25 0 25 50 75 100 125 0.1 1 10 100 1k 10k 100k 1M 10M 0.1 0.2 0.5 1 2 TEMPERATURE (°C) FREQUENCY (Hz) FREQUENCY (MHz) 1002 G13 1002 G15 1002 G14
Open Loop Gain Mismatch Power Supply Rejection and vs Frequency Closed Loop Output Impedance PSRR Match vs Frequency
1.0 100 160 VS = ±15V VS = ±15V ±2V pp TA = 25°C 140 TA = 25°C 0.8 ) 10 MATCH (NEGATIVE SUPPLY) Ω AV = 1000 120 100 0.6 1 80 AV = +1 0.4 0.1 NEGATIVE SUPPLY 60 PERCENT GAIN MISMATCH = POSITIVE SUPPLY OUTPUT A – OUTPUT B OUTPUT IMPEDANCE ( IO = ±1mA 40 0.2 × 100% 0.01 MATCH (POSITIVE SUPPLY) 1/ V 2 (OUTPUT A + OUTPUT B) S = ±15V POWER SUPPLY REJECTION (dB) TA = 25°C 20 OPEN LOOP GAIN MISMATCH (PERCENT) 0 0.001 0 1 10 100 1k 10k 100k 1 10 100 1k 10k 100k 0.1 1 10 100 1k 10k 100k FREQUENCY (Hz) FREQUENCY (Hz) FREQUENCY (Hz) 1002 G16 1002 G17 1002 G18 1002fb 6
