INA159 Texas instruments

INA159

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INA159

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Описание

The INA159 is a high slew rate, G = 1/5 difference amplifier consisting of a precision op amp with a precision resistor network. The gain of 1/5 makes the INA159 useful to couple ±10V signals to single-supply analog-to-digital converters (ADCs), particularly those operating on a single +5V supply. The on-chip resistors are laser-trimmed for accurate gain and high common-mode rejection. Excellent temperature coefficient of resistance (TCR) tracking of the resistors maintains gain accuracy and common-mode rejection over temperature. The input common-mode voltage range extends beyond the positive and negative supply rails. It operates on +1.8V to +5.5V single or split supplies. The INA159 reference input uses two resistors for easy mid-supply or reference biasing. The difference amplifier is the foundation of many commonly-used circuits. The INA159 provides this circuit function without using an expensive external precision resistor network. The INA159 is available in an MSOP-8 surface-mount package and is specified for operation over the extended industrial temperature range, -40°C to +125°C.

GAIN OF 0.2 TO INTERFACE ±10V SIGNALS TO SINGLE-SUPPLY ADCs
GAIN ACCURACY: ±0.024% (max)
WIDE BANDWIDTH: 1.5MHz
HIGH SLEW RATE: 15V/µs
LOW OFFSET VOLTAGE: ±100µV
LOW OFFSET DRIFT: ±1.5µV/°C
SINGLE-SUPPLY OPERATION DOWN TO 1.8V
APPLICATIONS
- INDUSTRIAL PROCESS CONTROLS
- INSTRUMENTATION
- DIFFERENTIAL TO SINGLE-ENDED CONVERSION
- AUDIO LINE RECEIVERS

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Number of channels	1
Vs (min) (V)	1.8
Vs (max) (V)	5.5
CMRR (min) (dB)	86
Common-mode input low (min) (V)	-12.5
Common-mode input high (max) (V)	17.5
Input offset (±) (max) (V)	0.0005
Iq (typ) (mA)	1.1
Slew rate (typ) (V/µs)	15
Voltage gain (min) (V/V)	0.2
Voltage gain (max) (V/V)	0.2
Small-signal bandwidth (typ) (Hz)	1500000
Rating	Catalog
Operating temperature range (°C)	-40 to 125
Gain error (±) (max) (%)	0.024