ISL28534

5V, Rail-to-Rail I/O, Zero-Drift, Single Ended Output Programmable Gain Instrumentation Amplifier

Product Status: Mass Production

OVERVIEW

The ISL28533, ISL28534, ISL28535, ISL28633, ISL28634 and ISL28635 are 5V zero-drift rail-to-rail input/output Programmable Gain Instrumentation Amplifiers (PGIA). These instrumentation amplifiers feature low offset, low noise, low gain error and high CMRR. They are ideal for high precision applications over the wide industrial temperature range.

These instrumentation amplifiers are designed with a unique 2-bit, 3-state logic interface that allows up to 9 selectable gain settings. The ISL2853x single-ended output includes an additional uncommitted zero-drift amplifier, useful to buffer the REF input or used as a precision amplifier. The ISL2863x differential output amplifier includes a reference pin to set the common-mode output voltage to interface with differential input ADCs.

KEY FEATURES

  • Ultra high precision front-end amplifier
  • Zero-drift instrumentation amplifier
  • Pin selectable 9 gain settings: G = 1 to 1,000
  • Rail-to-rail input/output
  • Single-ended output (ISL28533, ISL28534, ISL28535)
  • Differential output (ISL28633, ISL28634, ISL28635)
  • RFI filtered inputs improve EMI rejection
  • Single supply: 2.5V to 5.5V
  • Dual supply: ±1.25V to ±2.75V
  • Low input offset: 5μV, Maximum
  • Low input offset drift: 50nV/°C, Maximum
  • High CMRR: 138dB, G = 100
  • Low gain error: <0.4%, All Gains, Maximum
  • Gain bandwidth: 2.3MHz
  • Input voltage noise (0.1Hz to 10Hz): 0.4μVP-P
  • Operating temperature range: -40°C to +125°C

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL28534
Basic Information
生产状态
Mass Production
器件/通道数量
1
带宽 (MHz)
2.3
压摆率 (V/μs)
0.8
VS (最小值)
2.5 V
VS (最大值)
5.5 V
IS (每放大器)
2.9 mA
噪声VN (nV/√Hz)
17
IBIAS
50 pA
IBIAS (最大值)
400 pA
最大失调电压
5 µV
IOUT
4 mA
轨到轨输入
Yes
轨到轨输出
Yes
PSRR (dB)
140
CMRR (dB)
138
热关断
No
增益最小值
1
AVOL (dB)
140
启用
No
增益误差/测量误差最大值
0.05
拓扑
VFA
资质级别
Standard
CAN 采样
YES
温度范围
-40 to +125

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