Datasheet LTC6915 (Analog Devices) - 8
| Manufacturer | Analog Devices |
| Description | Zero Drift, Precision Instrumentation Amplifier with Digitally Programmable Gain |
| Pages / Page | 18 / 8 — Typical perForMance characTerisTics. Error Due to Input RS Mismatch. vs … |
| File Format / Size | PDF / 297 Kb |
| Document Language | English |
Typical perForMance characTerisTics. Error Due to Input RS Mismatch. vs Input Common Mode. Offset Voltage vs Temperature
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LTC6915
Typical perForMance characTerisTics Error Due to Input RS Mismatch Error Due to Input RS Mismatch Error Due to Input RS Mismatch vs Input Common Mode vs Input Common Mode vs Input Common Mode
80 40 30 VS = 3V VS = 5V VS = ±5V V 60 VREF = 0.2V 30 VREF = 0.2V REF = 0V CIN < 100pF CIN < 100pF R+ = 0k, R– = 20k 20 CIN < 100pF A R+ = 0k, R– = 20k A A 40 V = 16 20 V = 16 V = 16 TA = 25°C T T R+ = 0k, R– = 15k A = 25°C A = 25°C 10 20 10 R+ = 0k, R– = 15k R+ = 0k, R– = 20k 0 0 0 R+ = 0k, R– = 15k R+ = 15k, R– = 0k –20 R+ = 15k, R– = 0k –10 –10 R+ = 15k, R– = 0k R+ R+ R+ ADDITIONAL OFFSET (µV) –40 + ADDITIONAL OFFSET (µV) –20 + ADDITIONAL OFFSET (µV) + R+ = 20k, R– = 0k CIN CIN –20 CIN –60 – –30 – – R+ = 20k, R– = 0k R– R+ = 20k, R– = 0k R– R– –80 –40 –30 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 –5 –4 –3 –2 –1 0 1 2 3 4 5 INPUT COMMON MODE VOLTAGE (V) INPUT COMMON MODE VOLTAGE (V) INPUT COMMON MODE VOLTAGE (V) 6915 G10 6915 G11 6915 G12
Offset Voltage vs Temperature VOS vs REF (Pin 13) VOS vs REF (Pin 13)
15 2 20 VIN+ = VIN– = REF VIN+ = VIN– = REF AV = 16 AV = 16 T T 10 A = 25°C 10 A = 25°C –3 VS = ±5V 0 5 VS = 10V (µV) –8 (µV) –10 0 V OS V OS VS = 5V –20 V V S = 3V –13 S = 3V VS = 5V INPUT OFFSET VOLTAGE (µV) –5 –30 –10 –18 –40 –50 –25 0 25 50 75 100 125 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0 1 2 3 4 5 6 7 8 9 10 TEMPERATURE (°C) VREF (V) VREF (V) 6915 G13 6915 G14 6915 G15
Gain Nonlinearity at Gain = 1 (Gain Nonlinearity Decreases for Gain > 1) Supply Current vs Supply Voltage CMRR vs Frequency
5 1.15 130 VS = ±2.5V VS = 3V, 5V, ±5V 4 VCM = VREF = 0V 1.10 VIN = 1VP-P R 3 L = 10k TA = 85°C 120 AV = 1 1.05 R+ = R– = 1k 2 TA = 25°C 1.00 110 1 T 0.95 A = 125°C 0 100 R+ = R– = 10k 0.90 TA = 0°C –1 CMRR (db) R+ = 10k, R– = 0k –2 0.85 90 R+ SUPPLY CURRENT (mA) TA = –50°C GAIN NONLINEARITY (ppm) + –3 0.80 80 –4 0.75 – R+ = 0k, R– = 10k R– –5 0.70 70 –2.4 –1.8 –1.2 –0.6 0 0.6 1.2 1.8 2.4 2.5 3.5 4.5 5.5 6.5 7.5 8.5 9.5 10.5 11.5 1 10 100 1000 OUTPUT VOLTAGE (V) SUPPLY VOLTAGE (V) FREQUENCY (Hz) 6915 G16 6915 G17 6915 G18 6915fb 8 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagrams Timing Diagram Operation Typical Application Package Description Revision History Typical Application Related Parts
Typical perForMance characTerisTics Error Due to Input RS Mismatch Error Due to Input RS Mismatch Error Due to Input RS Mismatch vs Input Common Mode vs Input Common Mode vs Input Common Mode
80 40 30 VS = 3V VS = 5V VS = ±5V V 60 VREF = 0.2V 30 VREF = 0.2V REF = 0V CIN < 100pF CIN < 100pF R+ = 0k, R– = 20k 20 CIN < 100pF A R+ = 0k, R– = 20k A A 40 V = 16 20 V = 16 V = 16 TA = 25°C T T R+ = 0k, R– = 15k A = 25°C A = 25°C 10 20 10 R+ = 0k, R– = 15k R+ = 0k, R– = 20k 0 0 0 R+ = 0k, R– = 15k R+ = 15k, R– = 0k –20 R+ = 15k, R– = 0k –10 –10 R+ = 15k, R– = 0k R+ R+ R+ ADDITIONAL OFFSET (µV) –40 + ADDITIONAL OFFSET (µV) –20 + ADDITIONAL OFFSET (µV) + R+ = 20k, R– = 0k CIN CIN –20 CIN –60 – –30 – – R+ = 20k, R– = 0k R– R+ = 20k, R– = 0k R– R– –80 –40 –30 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 –5 –4 –3 –2 –1 0 1 2 3 4 5 INPUT COMMON MODE VOLTAGE (V) INPUT COMMON MODE VOLTAGE (V) INPUT COMMON MODE VOLTAGE (V) 6915 G10 6915 G11 6915 G12
Offset Voltage vs Temperature VOS vs REF (Pin 13) VOS vs REF (Pin 13)
15 2 20 VIN+ = VIN– = REF VIN+ = VIN– = REF AV = 16 AV = 16 T T 10 A = 25°C 10 A = 25°C –3 VS = ±5V 0 5 VS = 10V (µV) –8 (µV) –10 0 V OS V OS VS = 5V –20 V V S = 3V –13 S = 3V VS = 5V INPUT OFFSET VOLTAGE (µV) –5 –30 –10 –18 –40 –50 –25 0 25 50 75 100 125 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0 1 2 3 4 5 6 7 8 9 10 TEMPERATURE (°C) VREF (V) VREF (V) 6915 G13 6915 G14 6915 G15
Gain Nonlinearity at Gain = 1 (Gain Nonlinearity Decreases for Gain > 1) Supply Current vs Supply Voltage CMRR vs Frequency
5 1.15 130 VS = ±2.5V VS = 3V, 5V, ±5V 4 VCM = VREF = 0V 1.10 VIN = 1VP-P R 3 L = 10k TA = 85°C 120 AV = 1 1.05 R+ = R– = 1k 2 TA = 25°C 1.00 110 1 T 0.95 A = 125°C 0 100 R+ = R– = 10k 0.90 TA = 0°C –1 CMRR (db) R+ = 10k, R– = 0k –2 0.85 90 R+ SUPPLY CURRENT (mA) TA = –50°C GAIN NONLINEARITY (ppm) + –3 0.80 80 –4 0.75 – R+ = 0k, R– = 10k R– –5 0.70 70 –2.4 –1.8 –1.2 –0.6 0 0.6 1.2 1.8 2.4 2.5 3.5 4.5 5.5 6.5 7.5 8.5 9.5 10.5 11.5 1 10 100 1000 OUTPUT VOLTAGE (V) SUPPLY VOLTAGE (V) FREQUENCY (Hz) 6915 G16 6915 G17 6915 G18 6915fb 8 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagrams Timing Diagram Operation Typical Application Package Description Revision History Typical Application Related Parts
