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.
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|Number of Channels (#)|
|Vs (Min) (V)|
|Vs (Max) (V)|
|Slew Rate (Typ) (V/us)|
|Input Offset (+/-) (Max) (uV)|
|CMRR (Min) (dB)|
|Iq (Typ) (mA)|
|Small Signal Bandwidth (Typ) (kHz)|
|Operating Temperature Range (C)|
|Approx. Price (US$)|
|-40 to 125|
|1.70 | 1ku|
|Sample & Buy|
|Enhanced Product||INA159-EP||Supports Defense, Aerospace and Medical Applications|
|Part #||Name||Product Family||Comments|
|REF3225||2.5V 4ppm/Degrees C, 100uA SOT23-6 Series (Bandgap) Voltage Reference||VOLTAGE REFERENCE - SERIES VOLTAGE REFERENCE||
INA159 and REF3225 provide superior performance over the entire Common-Mode Range |
See Literature sbos333b ,the application information section
|ADS8325||16-Bit, 100kSPS Serial Out, 2.7V to 5.5V Micro Power Sampling ADC||ANALOG TO DIGITAL CONVERTER - PRECISION ADC (<=10MSPS)||Diff Amplifier and ADC for low power applications|