Datasheet LT1997-1 (Analog Devices) - 30

LT1997-1
TYPICAL APPLICATION Bidirectional Low Side Current Sense
VS –INA –INB –INC V+ LT1997-1 3k LOAD 7.5k 150k 15k – ILOAD RSENSE OUT V 15k + OUT =VS/2 –80 • ILOAD • RSENSE VS 7.5k 300k REF2 3k 300k REF1 +INA +INB +INC SHDN V– 19971 TA10 VS THIS CIRCUIT PROVIDES BIDIRECTIONAL LOW SIDE CURRENT SENSE BECAUSE IT CAN WORK AT SLIGHTLY NEGATIVE VOLTGES ON THE –INA/–INB/–INC INPUT PINS, AS DRAWN
RELATED PARTS PART NUMBER DESCRIPTION COMMENTS Difference Amplifiers
LT1997-3 Precision, Wide Voltage Range Gain Selectable Amplifier 3.3V to 50V Operation, CMRR > 91dB, Input Voltage = ±160V, Gain = 1, 3, 9 LT1997-2 Precision, Wide Voltage Range, Gain Selectable Funnel 3.3V to 50V Operation, CMRR > 105dB, Input Voltage = ±255V, Amplifier Gain = 0.1, 0.2, 0.25 LT6375 ±270V Common Mode Voltage Difference Amplifier 3.3V to 50V Operation, CMRR > 97dB, Input Voltage = ±270V, Gain = 1 LT6376 ±230V Common Mode Voltage G = 10 Difference Amplifier 3.3V to 50V Operation, CMRR > 90dB, Input Voltage = ±230V, Gain = 10 LT1990 ±250V Input Range Difference Amplifier 2.7V to 36V Operation, CMRR > 70dB, Input Voltage = ±250V, Gain = 1, 10 LT1991 Precision, 100µA Gain Selectable Amplifier 2.7V to 36V Operation, 50μV Offset, CMRR > 75dB, Input Voltage = ±60V LT1996 Precision, 100µA Gain Selectable Amplifier Micropower, Pin Selectable Up to Gain = 118 AD8275 G = 0.2, Level Translation, 16-Bit ADC Driver 3.3V to 15V Operation, CMRR > 86dB, Input Voltage = –35V to 40V, Gain = 0.2 AD8475 Precision, Selectable Gain, Fully Differential Funnel 3.3V to 10V Operation, CMRR > 86dB, Input Voltage = ±15V, Gain = 0.4, 0.8 Amplifier
Operational Amplifiers
LT6015/LT6016/ Single, Dual, and Quad Over-The-Top Precision Op Amp 3.2MHz, 0.8V/µs, 50µV VOS, 3V to 50V VS, 0.335mA IS, RRIO LT6017 LT6018 33V, Ultralow Noise, Precision Op Amp VOS: 50µV, GBW: 15MHz, SR: 30V/µs, en: 1.2nV/√Hz, IS: 7.2mA LTC6090/LTC6091 Single and Dual 140V Operational Amplifier 50pA IB, 1.6mV VOS, 9.5V to 140V VS, 4.5mA IS, RR Output
Current Sense Amplifiers
LT1999 High Voltage, Bidirectional Current Sense Amplifier –5V to 80V, 750µV, CMRR 80dB at 100kHz, Gain = 10, 20, 50 LT6108 High Side Current Sense Amplifier with Reference and 2.7V to 60V, 125µV, Resistor Set Gain, ±1.25% Threshold Error Comparator with Shutdown LT1787/LT1787HV Precision, Bidirectional High Side Current Sense Amplifier 2.7V to 60V Operation, 75μV Offset, 60μA Current Draw LT6100 Gain-Selectable High Side Current Sense Amplifier 4.1V to 48V Operation, Pin-Selectable Gain: 10V/V, 12.5V/V, 20V/V, 25V/V, 40V/V, 50V/V LTC6101/ High Voltage High Side Current Sense Amplifier 4V to 60V/5V to 100V Operation, External Resistor Set Gain, SOT23 LTC6101HV LTC6102/ Zero Drift High Side Current Sense Amplifier 4V to 60V/5V to 100V Operation, ±10μV Offset, 1μs Step Response, LTC6102HV MSOP8/DFN Packages LTC6104 Bidirectional, High Side Current Sense 4V to 60V, Gain Configurable, 8-Pin MSOP Package Rev 0 30 10/18 www.analog.com For more information www.analog.com ANALOG DEVICES, INC. 2018 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