INA188 電圧出力ハイサイド測定電流シャント・モニタ | TIJ.co.jp

INA188 (供給中)

電圧出力ハイサイド測定電流シャント・モニタ

 

推奨代替製品

  • INA828  -  36V、ゼロドリフト、レール・ツー・レール出力計測アンプ

概要

The INA188 is a precision instrumentation amplifier that uses TI proprietary auto-zeroing techniques to achieve low offset voltage, near-zero offset and gain drift, excellent linearity, and exceptionally low-noise density (12 nV/√Hz) that extends down to dc.

The INA188 is optimized to provide excellent common-mode rejection of greater than 104 dB (G ≥ 10). Superior common-mode and supply rejection supports high-resolution, precise measurement applications. The versatile three op-amp design offers a rail-to-rail output, low-voltage operation from a 4-V single supply as well as dual supplies up to ±18 V, and a wide, high-impedance input range. These specifications make this device ideal for universal signal measurement and sensor conditioning (such as temperature or bridge applications).

A single external resistor sets any gain from 1 to 1000. The INA188 is designed to use an industry-standard gain equation: G = 1 + (50 kΩ / RG). The reference pin can be used for level-shifting in single-supply operation or for an offset calibration.

The INA188 is specified over the temperature range of –40°C to +125°C .

特長

  • Excellent DC Performance:
    • Low Input Offset Voltage: 55 µV (max)
    • Low Input Offset Drift: 0.2 µV/°C (max)
    • High CMRR: 104 dB, G ≥ 10 (min)
  • Low Input Noise:
    • 12 nV/√Hz at 1 kHz
    • 0.25 µVPP (0.1 Hz to 10 Hz)
  • Wide Supply Range:
    • Single Supply: 4 V to 36 V
    • Dual Supply: ±2 V to ±18 V
  • Gain Set with a Single External Resistor:
    • Gain Equation: G = 1 + (50 kΩ / RG)
    • Gain Error: 0.007%, G = 1
    • Gain Drift: 5 ppm/°C (max) G = 1
  • Input Voltage: (V–) + 0.1 V to (V+) – 1.5 V
  • RFI-Filtered Inputs
  • Rail-to-Rail Output
  • Low Quiescent Current: 1.4 mA
  • Operating Temperature: –55°C to +150°C
  • SOIC-8 and DFN-8 Packages

詳細を表示

機能一覧 他の製品と比較 計測アンプ

 
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 1 kHz (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) (%)
INA188 INA828
1     1    
4     4.5    
36     36    
118     140    
55     50    
0.2     0.5    
2.5     0.6    
12.5     7    
1.4     0.6    
0.6     2    
1     1    
1000     1000    
0.5     0.15    
-40 to 125     -40 to 125    
SOIC | 8
SON | 8    
SOIC | 8    
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
See datasheet (SON)    
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)    
0.25     0.14    
  0.001