Datasheet LT1997-2 (Analog Devices) - 3
| Manufacturer | Analog Devices |
| Description | Precision, Wide Voltage Range, Gain Selectable Funnel Amplifier |
| Pages / Page | 26 / 3 — ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply … |
| File Format / Size | PDF / 2.8 Mb |
| Document Language | English |
ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply over the full operating
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LT1997-2
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 = ±2.8V ±0.001 ±0.006 % G = 0.1 l ±0.008 % VOUT = ±5.6V ±0.001 ±0.006 % G = 0.2 l ±0.008 % VOUT = ±7V ±0.001 ±0.006 % G = 0.25 l ±0.008 % ∆G/∆T Gain Drift vs Temperature (Note 6) VOUT = ±7V l ±0.2 ±1 ppm/°C GNL Gain Nonlinearity VOUT = ±7V ±1 ±2 ppm l ±3 ppm VOS Op Amp Offset Voltage (Note 9) V– < VCMOP < V+ – 1.75V ±20 ±80 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 = 0.1 l 115 137.5 160 kΩ G = 0.2 l 63 75 87 kΩ G = 0.25 l 52 62.5 73 kΩ Differential G = 0.1 l 420 500 580 kΩ G = 0.2 l 210 250 290 kΩ G = 0.25 l 168 200 232 kΩ CMRR Common Mode Rejection Ratio, G = 0.1, VCM = ±28V 105 120 dB Referred to Output, MS16 Package l 103 dB G = 0.2, VCM = ±28V 101 118 dB l 99 dB G = 0.25, VCM = ±28V 101 118 dB l 98 dB CMRR Common Mode Rejection Ratio, G = 0.1, VCM = ±28V 103 118 dB Referred to Output, DF14 Package l 101 dB G = 0.1, VCM = ±255V, VS = ±25V 103 118 dB l 101 dB G = 0.2, VCM = ±28V 99 116 dB l 97 dB G = 0.2, VCM = ±140V, VS = ±25V 99 116 dB l 97 dB G = 0.25, VCM = ±28V 99 116 dB l 97 dB G = 0.25, VCM = ±115V, VS = ±25V 99 116 dB l 97 dB VCM Input Voltage Range (Note 7) +INA/–INA l –255 255 V +INB/–INB l –140 140 V +INC/–INC l –115 115 V Rev 0 For more information www.analog.com 3 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS PIN FUNCTIONS BLOCK DIAGRAM APPLICATIONS INFORMATION TYPICAL APPLICATIONS 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 = ±2.8V ±0.001 ±0.006 % G = 0.1 l ±0.008 % VOUT = ±5.6V ±0.001 ±0.006 % G = 0.2 l ±0.008 % VOUT = ±7V ±0.001 ±0.006 % G = 0.25 l ±0.008 % ∆G/∆T Gain Drift vs Temperature (Note 6) VOUT = ±7V l ±0.2 ±1 ppm/°C GNL Gain Nonlinearity VOUT = ±7V ±1 ±2 ppm l ±3 ppm VOS Op Amp Offset Voltage (Note 9) V– < VCMOP < V+ – 1.75V ±20 ±80 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 = 0.1 l 115 137.5 160 kΩ G = 0.2 l 63 75 87 kΩ G = 0.25 l 52 62.5 73 kΩ Differential G = 0.1 l 420 500 580 kΩ G = 0.2 l 210 250 290 kΩ G = 0.25 l 168 200 232 kΩ CMRR Common Mode Rejection Ratio, G = 0.1, VCM = ±28V 105 120 dB Referred to Output, MS16 Package l 103 dB G = 0.2, VCM = ±28V 101 118 dB l 99 dB G = 0.25, VCM = ±28V 101 118 dB l 98 dB CMRR Common Mode Rejection Ratio, G = 0.1, VCM = ±28V 103 118 dB Referred to Output, DF14 Package l 101 dB G = 0.1, VCM = ±255V, VS = ±25V 103 118 dB l 101 dB G = 0.2, VCM = ±28V 99 116 dB l 97 dB G = 0.2, VCM = ±140V, VS = ±25V 99 116 dB l 97 dB G = 0.25, VCM = ±28V 99 116 dB l 97 dB G = 0.25, VCM = ±115V, VS = ±25V 99 116 dB l 97 dB VCM Input Voltage Range (Note 7) +INA/–INA l –255 255 V +INB/–INB l –140 140 V +INC/–INC l –115 115 V Rev 0 For more information www.analog.com 3 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS PIN FUNCTIONS BLOCK DIAGRAM APPLICATIONS INFORMATION TYPICAL APPLICATIONS PACKAGE DESCRIPTION TYPICAL APPLICATION RELATED PARTS
