High-Speed, Precision Gain of 0.2 Level Translation Difference Amplifier - INA159

INA159 (ACTIVE)

High-Speed, Precision Gain of 0.2 Level Translation Difference Amplifier

Description

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.

Features

  • 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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Parametrics Compare all products in Difference Amplifier

 
Number of Channels (#)
Vs (Min) (V)
Vs (Max) (V)
Slew Rate (Typ) (V/us)
Input Offset (+/-) (Max) (uV)
CMRR (Min) (dB)
Iq (Typ) (mA)
Gain (V/V)
Small Signal Bandwidth (Typ) (kHz)
Operating Temperature Range (C)
Pin/Package
Rating
Approx. Price (US$)
INA159
2    
1.8    
5.5    
15    
500    
86    
1.1    
0.2    
1500    
-40 to 125    
8VSSOP    
Catalog    
1.70 | 1ku    

Other qualified versions of INA159

Version Part Number Definition
Enhanced Product INA159-EP Supports Defense, Aerospace and Medical Applications

Companion parts

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  
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