INA828 50-μV Offset, 7-nV/√Hz Noise, Low-Power, Precision Instrumentation Amplifier | TI.com

INA828 (ACTIVE)

50-μV Offset, 7-nV/√Hz Noise, Low-Power, Precision Instrumentation Amplifier

 

Description

The INA828 is a high-precision instrumentation amplifier that offers low power consumption and operates over a very wide single- or dual-supply range. A single external resistor sets any gain from 1 to 1000. The device offers excellent precision due to the use of new super-beta input transistors which provide exceptionally low input offset voltage, offset voltage drift, input bias current, and input voltage and current noise. Additional circuitry protects the inputs against overvoltage up to ±40 V.

The INA828 is optimized to provide excellent common-mode rejection ratio. At G = 1, the common-mode rejection ratio exceeds 90 dB across the full input common-mode range. The device is well-suited for low-voltage operation from a 5-V single supply as well as dual supplies up to ±18 V. Finally, INA828 is available in an 8-pin SOIC package and specified over the –40°C to +125°C temperature range.

Features

  • Precision Instrumentation Amplifier Evolution:
    • Second Generation: INA828
    • First Generation: INA128
  • Low Offset Voltage: 50 µV, MAX
  • Gain Drift: 5 ppm/°C (G = 1), 50 ppm/°C (G > 1)
  • Noise: 7 nV/√Hz
  • Bandwidth: 2 MHz (G = 1), 260 kHz (G = 100)
  • Stable with 1-nF Capacitive Loads
  • Inputs Protected Up to ±40 V
  • Common-Mode Rejection:
    • 110 dB, MIN (G = 10)
  • Power-Supply Rejection: 100 dB, MIN (G = 1)
  • Supply Current: 650 µA, MAX
  • Supply Range:
    • Single Supply: 4.5 V to 36 V
    • Dual Supply: ±2.25 V to ±18 V
  • Specified Temperature Range:
    –40°C to +125°C
  • Package: 8-Pin SOIC

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Parametrics Compare all products in Instrumentation amplifiers

 
Number of Channels (#)
Vs (Min) (V)
Vs (Max) (V)
CMRR (Min) (dB)
Input Offset (+/-) (Max) (uV)
Input Offset Drift (+/-) (Max) (uV/C)
Input Bias Current (+/-) (Max) (nA)
Noise at 1kHz (Typ) (nV/rt(Hz))
Iq (Typ) (mA)
Bandwidth at Min Gain (Typ) (MHz)
Gain (Min) (V/V)
Gain (Max) (V/V)
Gain Error (+/-) (Max) (%)
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
Noise at 0.1 Hz - 10 Hz (Typ) (uVpp)
Gain Non-Linearity (+/-) (Max) (%)
INA828 INA128 INA129 INA188 INA821 INA826 INA826S
1     1     1     1     1     1     1    
4.5     4.5     4.5     4     4.5     3     3    
36     36     36     36     36     36     36    
140     120     120     118     140     120     120    
50     50     50     55     35     150     150    
0.5     0.5     0.5     0.2     0.4     2     2    
0.6     5     5     2.5     0.5     65     65    
7     8     8     12.5     7     18     18    
0.6     0.7     0.7     1.4     0.6     0.2     0.2    
2     1.3     1.3     0.6     5.6     1     1    
1     1     1     1     1     1     1    
1000     10000     10000     1000     1000     1000     1000    
0.15     2     2     0.5     0.15     0.15     0.15    
-40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125    
SOIC | 8     PDIP | 8
SOIC | 8    
PDIP | 8
SOIC | 8    
SOIC | 8
SON | 8    
SOIC | 8     SOIC | 8
SON | 8
VSSOP | 8    
VSON | 10    
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)     See datasheet (PDIP)
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)    
See datasheet (PDIP)
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)    
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
See datasheet (SON)    
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)     8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
See datasheet (SON)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
10VSON: 9 mm2: 3 x 3 (VSON | 10)    
0.14     0.2     0.2     0.25     0.14     0.52     0.52    
0.001     0.012     0.002       0.001     0.0005     0.0005