Datasheet LT1997-1 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | Precision, High Voltage, Gain Selectable Difference/Current Sense Amplifier |
| Pages / Page | 30 / 4 — ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply … |
| File Format / Size | PDF / 1.5 Mb |
| Document Language | English |
ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply over the full operating
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LT1997-1
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, –40°C < TA < 85°C for I-grade parts, –40°C < TA < 125°C for H-grade parts, otherwise specifications are at TA = 25°C. Difference Amplifier Configuration, V+ = 15V, V– = –15V, VCM = VOUT = VREF = VREF1 = VREF2 = 0V. VCMOP is the common mode voltage of the internal op amp. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
∆G Gain Error VOUT = ±10V MS16 Package G = 10 ±0.005 ±0.012 % l ±0.014 % G = 20 ±0.01 ±0.022 % l ±0.028 % G = 50 ±0.015 ±0.038 % l ±0.04 % ∆G Gain Error VOUT = ±10V DF14 Package G = 10 ±0.005 ±0.017 % l ±0.019 % G = 20 ±0.01 ±0.025 % l ±0.03 % G = 50 ±0.015 ±0.051 % l ±0.053 % ∆G/∆T Gain Drift vs Temperature (Note 6) VOUT = ±10V l ±0.2 ±1 ppm/°C GNL Gain Nonlinearity VOUT = ±10V ±1 ±2 ppm l ±3 ppm VOS Op Amp Offset Voltage (Note 9) V– < VCMOP < V+ – 1.75V ±20 ±65 µV l ±200 µV ∆VOS/∆T Op Amp Offset Voltage Drift (Note 6) V– < VCMOP < V+ – 1.75V l ±0.5 ±1.5 µV/°C IB Op Amp Input Bias Current V– + 0.25V < VCMOP < V+ – 1.75V –5 ±2 5 nA l –15 15 nA IOS Op Amp Input Offset Current V– + 0.25V < VCMOP < V+ – 1.75V –3 ±0.5 3 nA l –10 10 nA RIN Input Impedance (Note 8) Common Mode G = 10 l 69.3 82.5 95.7 kΩ G = 20 l 66.1 78.75 91.4 kΩ G = 50 l 64.2 76.5 88.8 kΩ Differential G = 10 l 25.2 30 34.8 kΩ G = 20 l 12.6 15 17.4 kΩ G = 50 l 5 6 7 kΩ CMRR Common Mode Rejection Ratio G = 10, VCM = –15V to +14.575V 109 126 dB MS16 Package l 107 dB G = 10, VCM = –15V to +61V, +INC = –INC = 0V 84 98 dB l 82 dB G = 20, VCM = –15V to +13.9125V 109 128 dB l 107 dB G = 50, VCM = –15V to +13.515V 116 130 dB l 114 dB CMRR Common Mode Rejection Ratio G = 10, VCM = –15V to +14.575V 107 123 dB DF14 Package l 100 dB G = 10, VCM = –15V to +61V, +INC = –INC = 0V 81 96 dB l 78 dB G = 20, VCM = –15V to +13.9125V 107 124 dB l 102 dB G = 50, VCM = –15V to +13.515V 111 125 dB l 107 dB Rev 0 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Block Diagram Applications Information Package Description Typical Application Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Package Description Typical Application Related Parts
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, –40°C < TA < 85°C for I-grade parts, –40°C < TA < 125°C for H-grade parts, otherwise specifications are at TA = 25°C. Difference Amplifier Configuration, V+ = 15V, V– = –15V, VCM = VOUT = VREF = VREF1 = VREF2 = 0V. VCMOP is the common mode voltage of the internal op amp. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
∆G Gain Error VOUT = ±10V MS16 Package G = 10 ±0.005 ±0.012 % l ±0.014 % G = 20 ±0.01 ±0.022 % l ±0.028 % G = 50 ±0.015 ±0.038 % l ±0.04 % ∆G Gain Error VOUT = ±10V DF14 Package G = 10 ±0.005 ±0.017 % l ±0.019 % G = 20 ±0.01 ±0.025 % l ±0.03 % G = 50 ±0.015 ±0.051 % l ±0.053 % ∆G/∆T Gain Drift vs Temperature (Note 6) VOUT = ±10V l ±0.2 ±1 ppm/°C GNL Gain Nonlinearity VOUT = ±10V ±1 ±2 ppm l ±3 ppm VOS Op Amp Offset Voltage (Note 9) V– < VCMOP < V+ – 1.75V ±20 ±65 µV l ±200 µV ∆VOS/∆T Op Amp Offset Voltage Drift (Note 6) V– < VCMOP < V+ – 1.75V l ±0.5 ±1.5 µV/°C IB Op Amp Input Bias Current V– + 0.25V < VCMOP < V+ – 1.75V –5 ±2 5 nA l –15 15 nA IOS Op Amp Input Offset Current V– + 0.25V < VCMOP < V+ – 1.75V –3 ±0.5 3 nA l –10 10 nA RIN Input Impedance (Note 8) Common Mode G = 10 l 69.3 82.5 95.7 kΩ G = 20 l 66.1 78.75 91.4 kΩ G = 50 l 64.2 76.5 88.8 kΩ Differential G = 10 l 25.2 30 34.8 kΩ G = 20 l 12.6 15 17.4 kΩ G = 50 l 5 6 7 kΩ CMRR Common Mode Rejection Ratio G = 10, VCM = –15V to +14.575V 109 126 dB MS16 Package l 107 dB G = 10, VCM = –15V to +61V, +INC = –INC = 0V 84 98 dB l 82 dB G = 20, VCM = –15V to +13.9125V 109 128 dB l 107 dB G = 50, VCM = –15V to +13.515V 116 130 dB l 114 dB CMRR Common Mode Rejection Ratio G = 10, VCM = –15V to +14.575V 107 123 dB DF14 Package l 100 dB G = 10, VCM = –15V to +61V, +INC = –INC = 0V 81 96 dB l 78 dB G = 20, VCM = –15V to +13.9125V 107 124 dB l 102 dB G = 50, VCM = –15V to +13.515V 111 125 dB l 107 dB Rev 0 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Block Diagram Applications Information Package Description Typical Application Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Package Description Typical Application Related Parts
