SDAA511 September   2026 OPA192 , PGA855

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Detailed Description
    1. 2.1 ATE Testing Card and Signal Sensing
    2. 2.2 Signal Sensing Requirements
    3. 2.3 Signal Sensing
    4. 2.4 General Purpose Sensing
    5. 2.5 Precision Signal Sensing
      1. 2.5.1 Middle and High Voltage Signal
      2. 2.5.2 Current Signal with Middle and High Common Mode Voltage
      3. 2.5.3 Signal Which Requires Very Low Current Leakage
      4. 2.5.4 Fast Voltage Signal
      5. 2.5.5 Ultra-High Voltage Signal
  6. 3Summary
  7. 4References

2.5.1 Middle and High Voltage Signal

Precision middle voltage sensing is most common application in PMU and DPS, For voltage<200V, Table 2-1 OP buffer can be used.

Table 2-1 Middle and High Voltage Buffer Amplifier
PN Key Feature
OPA182

36V, 5Mhz, 10V/us, Ib=50pA(typ), CMRR=168dB(typ, ±18V), THD+N=0.8ppm, En=0.119uVpp

Offset drift=3nV/°C
OPA196

36V, 2.5Mhz, 5.5V/us, Ib=5pA(typ), CMRR=140dB(typ, ±18V), THD+N=12ppm, En=7uVpp

Offset drift=0.5uV/°C
OPA192

36V, 10Mhz, 20V/us, Ib=5pA(typ), CMRR=140dB(typ, ±18V), THD+N=0.8ppm, En=4uVpp

Offset drift=0.1uV/°C
PGA849

36V, 10Mhz, 35V/us, Ib=500pA(typ), CMRR=100dB(gain=1), THD+N=3.2ppm, En=0.91uVpp(gain=1)

Offset drift=0.2uV/°C, gain drift=1ppm/°C(max)
PGA854

36V, 6.2Mhz, 45V/us, Ib=500pA(typ), CMRR=88dB(gain=1), THD+N=11ppm, En=0.76uVpp(gain=1)

Offset drift=0.2uV/°C, gain drift=0.2ppm/°C
PGA855

36V, 10Mhz, 35V/us, Ib=500pA(typ), CMRR=88dB(gain=1), THD+N=3.2ppm, En=0.8uVpp(gain=1)

Offset drift=0.3uV/°C, gain drift=1ppm/°C(max)
OPA486

48V, 5.6Mhz, 15V/us, Ib=50pA(typ), CMRR=160dB(±24V), THD+N=1.2ppm, En=0.3uVpp

Offset drift=5nV/°C
OPAx488

48V, 14Mhz, 40V/us, Ib=55pA(typ), CMRR=150dB(±24V), THD+N=1.2ppm, En=0.3uVpp

Offset drift=4nV/°C
OPA596

85V, 3.75Mhz, 100V/us, Ib=5pA(typ), CMRR=140dB, THD+N=8ppm, En=1.4uVpp

Offset drift=1uV/°C
OPA591

85V, 3.75Mhz, 100V/us, Ib=5pA(typ), CMRR=140dB, THD+N=8ppm, En=1.4uVpp

Offset drift=0.3uV/°C
OPA454

100V, 2.5Mhz, 13V/us, Ib=1.4pA(typ), CMRR=146dB, THD+N=8ppm, En=15uVpp

Offset drift=1.6uV/°C
OPA455

150V, 6.5Mhz, 32V/us, Ib=30pA(typ), CMRR=128dB, THD+N=9ppm, En=12uVpp

Offset drift=4uV/°C
OPA462

180V, 6.5Mhz, 32V/us, Ib=30pA(typ), CMRR=128dB, THD+N=9ppm, En=12uVpp

Offset drift=4uV/°C