INA146 Series

High-Voltage, Programmable Gain Difference Amplifier

Catalog

High-Voltage, Programmable Gain Difference Amplifier

Part	Operating Temperature [Min]	Operating Temperature [Max]	Slew Rate	Package / Case	Package / Case [y]	Package / Case [x]	Current - Output / Channel	Supplier Device Package	Number of Circuits	Amplifier Type	Voltage - Input Offset	Mounting Type	Current - Supply	Current - Input Bias	-3db Bandwidth	Voltage - Supply Span (Min) [Min]	Voltage - Supply Span (Max) [Max]
Texas Instruments INA146UA/2K5	-40 °C	85 °C	0.45 V/µs	8-SOIC	3.9 mm	0.154 in	15 mA	8-SOIC	1	Differential	1 mV	Surface Mount	570 µA	50 nA	550 kHz	4.5 V	36 V
Texas Instruments INA146UAG4	-40 °C	85 °C	0.45 V/µs	8-SOIC	3.9 mm	0.154 in	15 mA	8-SOIC	1	Differential	1 mV	Surface Mount	570 µA	50 nA	550 kHz	4.5 V	36 V
Texas Instruments INA146UA	-40 °C	85 °C	0.45 V/µs	8-SOIC	3.9 mm	0.154 in	15 mA	8-SOIC	1	Differential	1 mV	Surface Mount	570 µA	50 nA	550 kHz	4.5 V	36 V

Catalog

High-Voltage, Programmable Gain Difference Amplifier

Key Features

• High common-mode voltage:40 V at V S = 5 V±100 V at V S = ±15 VDifferential gain = 0.1 V/V TO 100 V/V:Set with External ResistorsLow quiescent current: 570 µAWide supply range:Single Supply: 4.5 V to 36 VDual Supplies: ±2.25 V to ±18 VLow gain error: 0.025%High common-mode rejection: 80 dBHigh common-mode voltage:40 V at V S = 5 V±100 V at V S = ±15 VDifferential gain = 0.1 V/V TO 100 V/V:Set with External ResistorsLow quiescent current: 570 µAWide supply range:Single Supply: 4.5 V to 36 VDual Supplies: ±2.25 V to ±18 VLow gain error: 0.025%High common-mode rejection: 80 dB

Description

The INA146 is a precision difference amplifier that can be used to accurately attenuate high differential voltages and reject high common-mode voltages for compatibility with common signal processing voltage levels. High-voltage capability also affords inherent input protection. The input common-mode range extends beyond both supply rails, making the INA146 an excellent choice for both single and dual supply applications. On-chip precision resistors are laser-trimmed to achieve accurate gain and high common-mode rejection. Excellent TCR tracking of these resistors provides continued high precision over temperature. A 10:1 difference amplifier provides 0.1 V/V gain when the output amplifier is used as a unity-gain buffer. In this configuration, input voltages up to ±100 V can be measured. Gains greater than 0.1 V/V can be set with an external resistor pair without affecting the common-mode input range. The INA146 is available in the SO-8 surface-mount package specified for the extended industrial temperature range, –40°C to 85°C. The INA146 is a precision difference amplifier that can be used to accurately attenuate high differential voltages and reject high common-mode voltages for compatibility with common signal processing voltage levels. High-voltage capability also affords inherent input protection. The input common-mode range extends beyond both supply rails, making the INA146 an excellent choice for both single and dual supply applications. On-chip precision resistors are laser-trimmed to achieve accurate gain and high common-mode rejection. Excellent TCR tracking of these resistors provides continued high precision over temperature. A 10:1 difference amplifier provides 0.1 V/V gain when the output amplifier is used as a unity-gain buffer. In this configuration, input voltages up to ±100 V can be measured. Gains greater than 0.1 V/V can be set with an external resistor pair without affecting the common-mode input range. The INA146 is available in the SO-8 surface-mount package specified for the extended industrial temperature range, –40°C to 85°C.