ISL26102: Low-Noise 24-bit Delta Sigma ADC

The ISL26102 and ISL26104 provide a low-noise programmable gain amplifier along with a 24-bit Delta-Sigma Analog-to-Digital Converter with two channel (ISL26102) or four channel (ISL26104) differential, multiplexed inputs. The devices feature exceptional noise performance for conversion rates ranging from 2.5Sps to 4kSps.

The on-chip low-noise programmable-gain amplifier provides gains ranging from 1 to 128, which supports ±19.5mVFS from a 5V reference. The high input impedance allows direct connection of sensors such as load cell bridges to ensure the specified measurement accuracy without additional circuitry.

The Delta-Sigma ADC features a 3rd-order modulator providing up to 21.5 bit noise-free performance (10Sps), with user-selectable word rates. The converter can be operated from an external clock source, an external crystal (typically 4.9152MHz), or the on-chip oscillator.

The ISL26102 and ISL26104 offer a simple-to-use serial interface.

The ISL26102 and ISL26104 are available in a Thin Shrink Small Outline Package (TSSOP). The devices are specified for operation over the automotive temperature range (-40°C to +105°C).

Key Features
  • Programmable gain amplifier with gains of 1 to 128
  • Low noise: 7nV/√Hz @ PGA = 128
  • Linearity error: 0.0002% FS
  • Output word rates up to 4kSps
  • Low-side switch for load cell power management
  • +5V analog and +2.7V to +5V digital supplies
  • ISL26102 in 24 Ld TSSOP
  • ISL26104 in 28 Ld TSSOP
  • ESD 7.5kV - HBM
Applications
  • Weigh scales
  • Temperature monitors and controls
  • Load safety systems
  • Industrial process control
  • Pressure sensors
Typical Diagram
Application Notes
TitleTypeUpdatedSizeOther Languages
AN9705: A Theoretical View of Coherent SamplingPDF13 Nov 201425 KB
AN9675: Coherent and Windowed Sampling with A/D ConvertersPDF13 Nov 2014160 KB
AN002: Principles of Data Acquisition and ConversionPDF13 Nov 2014257 KB
Datasheets
TitleTypeUpdatedSizeOther Languages
ISL26102, ISL26104 DatasheetPDF17 Nov 2014903 KB
Software
TitleTypeUpdatedSizeOther Languages
ISL261xxAV28EV1Z Software Installer v3.0EXE07 Oct 201428.5 MB
User Guides
TitleTypeUpdatedSizeOther Languages
ISL26104AV28EV1Z User GuidePDF13 Nov 20142.79 MB
Order Information
Part NumberPackage TypeWeight(g)PinsMSL RatingPeak Temp (°C)RoHS Status
ISL26102AVZ-T24 Ld TSSOP T+R0.09242260RoHS
ISL26102AVZ-T7A24 Ld TSSOP T+R0.09242260RoHS
ISL26102AVZ24 Ld TSSOP0.09242260RoHS
ISL26104AV28EV1ZN/ARoHS
ISL26102, ISL26104 Datasheet 17 Nov 2014
AN1801:DAQ on a Stick, Energy Micro Thermocouple ISL21010CFH325
ISLRE-BDGSTKEV2Z 设计文件 RENESAS-STRAIN-GAUGE-REFERENCE-DESIGN
ISLRE-TCSTKEV1Z 设计文件 RENESAS-THERMO-REFERENCE-DESIGN
Intersil 和 Freescale 热电偶及应变仪参考设计固件演示 (.srec) FREESCALE-REFERENCE-DESIGN
DAQ on a Stick with Honeywell Pressure Sensor software ISL26102
Intersil/Renesas Thermocouple DAQ on a Stick setup Rev 1.1 ISL21010CFH325
Intersil/Renesas Strain Gauge DAQ on a Stick setup Rev 1.1 ISL21010CFH325
Intersil 和 Freescale 热电偶及应变仪参考设计软件 FREESCALE-REFERENCE-DESIGN
Strain Gauge DAQ on a Stick Software Rev 2 ISL26102
Thermocouple DAQ on a Stick Software v1.1 ISL26102
Intersil/Renesas Thermocouple and Strain Gauge Software ISL80138
Intersil、瑞萨和 VPG 的高压应变仪和箔电阻参考设计用户指南 RENESAS-PMOD-VISHAY-STRAIN-GAUGE-REFERENCE-DESIGN
Intersil-Renesas-EV1Z 用户指南 RENESAS-PMOD-VISHAY-STRAIN-GAUGE-REFERENCE-DESIGN
Intersil, Renesas and VPG Low Voltage Strain Gauge and Foil Resistor Reference Design User Guide ISL21010CFH325
DAQ on a Stick with Honeywell Pressure Sensor User Guide ISL21010CFH325
ISLRE-BDGSTKEV2Z User Guide ISL21010CFH325
ISLRE-TCSTKEV1Z User Guide ISL21010CFH325
ISLEM-BDGSTKEV1Z User Guide ISL21010CFH325
ISLFREESCALE-EV1Z User Guide ISL80101
Precision Signal Path Data Acquisition System User Guide ICL7663S
说明书:DAQ on a Stick Strain Gauge with EFM32 ISL26102
说明书:Thermocouple & Strain Gauge AFE with Kinetis KL25Z FREESCALE-REFERENCE-DESIGN
说明书:DAQ on a Stick Strain Gauge with R5F10JPBC RENESAS-STRAIN-GAUGE-REFERENCE-DESIGN
说明书:DAQ on a Stick Thermocouple with EFM32 ISL26102
说明书:DAQ on a Stick Thermocouple with R5F10JBC RENESAS-THERMO-REFERENCE-DESIGN
Cookbook:Thermocouple & Strain Gauge AFE with RL78/G13 ISL80138
说明书:DAQ on a Stick Honeywell Pressure Sensor with R5F10JBC ISL26102
说明书:高压应变仪和箔电阻参考设计 RENESAS-PMOD-VISHAY-STRAIN-GAUGE-REFERENCE-DESIGN
说明书:Low Voltage Strain Gauge and Foil Resistor Ref Design ISL26102
24 Ld TSSOP ICL3207E
ISL26104
AN9705: A Theoretical View of Coherent Sampling 13 Nov 2014
AN9675: Coherent and Windowed Sampling with A/D Converters 13 Nov 2014
AN002: Principles of Data Acquisition and Conversion 13 Nov 2014
ISL261xxAV28EV1Z Software Installer v3.0 07 Oct 2014
ISL26104AV28EV1Z User Guide 13 Nov 2014