DATASHEET ISL28533, ISL28534, ISL28535, ISL28633, ISL28634, ISL28635 FN8364 Rev.2.02 5V, Rail-to-Rail I/O, Zero-Drift, Programmable Gain Instrumentation Amplifiers Jun 4, 2020 The ISL28533, ISL28534, ISL28535, ISL28633, ISL28634, and Features ISL28635 are 5V zero-drift rail-to-rail input/output Ultra high precision front-end amplifier Programmable Gain Instrumentation Amplifiers (PGIA). These instrumentation amplifiers feature low offset, low noise, low Zero-drift instrumentation amplifier gain error and high CMRR. They are ideal for high precision Pin selectable 9 gain settings: G = 1 to 1,000 applications over the wide industrial temperature range. Rail-to-rail input/output These instrumentation amplifiers are designed with a unique Single-ended output (ISL28533, ISL28534, ISL28535) 2-bit, 3-state logic interface that allows up to 9 selectable gain Differential output (ISL28633, ISL28634, ISL28635) settings. The ISL2853x single-ended output includes an RFI filtered inputs improve EMI rejection additional uncommitted zero-drift amplifier, useful to buffer the REF input or used as a precision amplifier. The ISL2863x Single supply . 2.5V to 5.5V differential output amplifier includes a reference pin to set the Dual supply . 1.25V to 2.75V common-mode output voltage to interface with differential Low input offset .5V, Maximum input ADCs. Low input offset drift 50nV/C, Maximum Applications High CMRR 138dB, G = 100 Pressure and strain gauge transducers Low gain error <0.4%, All Gains, Maximum Weight scales Gain bandwidth . 2.3MHz Flow sensors Input voltage noise (0.1Hz to 10Hz) . 0.4V P-P Biometric: ECG/blood glucose Operating temperature range -40C to +125C Temperature sensors Test and measurement Related Literature Data acquisition systems For a full list of related documents, visit our website: Low ohmic current sense ISL28533, ISL28534, ISL28535, ISL28633, ISL28634, and ISL28635 device page TABLE 1. KEY DIFFERENCES BETWEEN FAMILY OF PARTS ADDITIONAL UNCOMMITTED PART NUMBER OUTPUT OP AMP ISL28533/34/35 Single-ended Yes ISL28633/34/35 Differential No RR VA- VA- INA- INA- A 1 A 1 A OUTA+ 3 RR R R R F R G0 F R A G0 OUTA G 3 R G G1 A 5 G1 R F REF R F REF RR R R OUT A 2 A OUTA- 4 A 2 INA+ IN- INA+ A 4 RR VA+ IN+ VA+ FIGURE 1. ISL2853x SINGLE-ENDED OUTPUT FIGURE 2. ISL2863x DIFFERENTIAL OUTPUT FN8364 Rev.2.02 Page 1 of 30 Jun 4, 2020ISL28533, ISL28534, ISL28535, ISL28633, ISL28634, ISL28635 Table of Contents Pin Configurations . 3 Pin Descriptions . 3 Typical Sensor Application Block Diagram, ISL28533 Single-Ended Output 4 Typical Bridge Sensor Application Block Diagram, ISL28634 Differential Output . 4 G0 and G1 Programmable Gain Setting . 5 Ordering Information 5 Absolute Maximum Ratings . 6 Thermal Information . 6 Operating Conditions 6 Electrical Specifications . 6 Operating Specifications . 9 Typical Instrumentation Amplifier Performance Curves . 13 Typical Operational Amplifier Performance Curves 22 Applications Information 25 Precision Sensor Amplifier 25 Single-Ended Output 25 Differential Output . 25 RFI Filter 25 Gain Stage Output VA+/VA- Pins 25 Programmable Gain Logic . 26 Gain Setting with DCP . 26 Gain Switching Delay Time 27 Dual Supply Operation 27 Power Supply and REF Pin Sequencing 27 Common-Mode Input Range . 27 Application Circuits . 27 Sensor Health Monitor . 27 Active Shield Guard Drive . 27 Revision History 29 Package Outline Drawing 30 FN8364 Rev.2.02 Page 2 of 30 Jun 4, 2020