LT1168 Datasheet | Linear Technology

Features Low Power, Single Resistor Gain Programmable, Precision Instrumentation Amplifier DESCRIPTIO - Supply Current: 530µA Max - Meets IEC 1000-4-2 Level 4 (±15k V) ESD Tests with Two External 5k Resistors - Single Gain Set Resistor: G = 1 to 10,000 - Gain Error: G = 10, 0.4% Max - Input Offset Voltage Drift: 0.3µV/°C Max - Gain Nonlinearity: G = 10, 20ppm Max - Input Offset Voltage: 40µV Max - Input Bias Current: 250p A Max - PSRR at AV =1: 103d B Min - CMRR at AV = 1: 90d B Min - Wide Supply Range: ±2.3V to ±18V - 1k Hz Voltage Noise: 10n V/√Hz - 0.1Hz to 10Hz Noise: 0.28µVP-P - Available in 8-Pin PDIP and SO Packages U APPLICATIO S - Bridge Amplifiers - Strain Gauge Amplifiers - Thermocouple Amplifiers - Differential to Single-Ended Converters - Differential Voltage to Current Converters - Data Acquisition - Battery-Powered and Portable Equipment - Medical Instrumentation - Scales The LT ®1168 is a micropower, precision instrumentation amplifier that requires only one external resistor to set gains of 1 to 10,000. The low voltage noise of 10n V/√Hz (at 1k Hz) is not promised by low power dissipation (350µA typical for ±15Vsupplies).Thewidesupplyrangeof±2.3Vto±18Vallows the LT1168 to fit into a wide variety of industrial as well as battery-powered applications. The high accuracy of the LT1168 is due to a 20ppm maximum nonlinearityand0.4%maxgainerror(G=10).Previousmonolithic instrumentation amps cannot handle a 2k load resistor whereas the nonlinearity of the LT1168 is specified for loads as low as 2k. The LT1168 is laser trimmed for very low input offsetvoltage(40µVmax),drift(0.3µV/°C),high CMRR(90d B, G = 1) and PSRR (103d B, G = 1). Low input bias currents of 250p A max are achieved with the use of superbeta processing. The output can handle capacitive loads up to 1000p F in any gain configuration while the inputs are ESD protected up to 13k V (human body). The LT1168 with two external 5k resistors passes the IEC 1000-4-2 level 4 specification. The...