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
Description
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).
Parameters
| Attributes | Value |
|---|---|
| Resolution (bits) | 24 |
| Channels (#) | 2 |
| Conversion Rate (Max) (kSPS) | 4 |
| INL (%FS) | 0.0002 |
| Analog Supply Voltage (V) | 4.75 - 5.25 |
| Digital Supply Voltage (V) | 2.7 - 5.25 |
| Supply Voltage (V) | 4.75 - 5.25 |
| Power Consumption (mW) | 33.75 |
| Noise (μVrms) | 0.007 |
| Qualification Level | Standard |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| TSSOP | 7.8 x 4.4 x 0.00 | 24 | 0.7 |
Applications
- Weigh scales
- Temperature monitors and controls
- Load safety systems
- Industrial process control
- Pressure sensors
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Support Communities
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Interfacing of ISL26102 IC (24 bit ADC)
Hello, I am interfacing ISL26102 ADC ic with LPC1700 UC. Following is the configuration, COPL = 0, COPH = 0. Mode - Master, 8 bit SPI mode SPI Speed - 100Khz clock frequency. Initially i am doing only single register write and read operation which is working fine as follow, //For write ...
Nov 21, 2018 -
ISL26102
Hi, friends, I need to configure the ISL26102 to read the 2 differential channels at a sampling rate of 1khz. Are there example codes regarding this chip?. Thanks,
Apr 11, 2024 -
sclk spi isl26102
Hi friends, What is the frequency of the internal oscillator?. Using internal oscillator, what is the maximum frequency that I can indicate for the SPI protocol?. To read data from the isl26102, must the /cs be set to 1 (which is the opposite of when reading or writing to ...
Jun 11, 2024
Knowledge Base
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Can Multiple ISL26102 Connect to the Same SPI Port?
Multiple ISL26102 cannot be connected to the same serial interface bus, as the SPI of the ISL26102 is different from the standard SPI. This is due to the double function of the SDO/RDY pin, whose timing is shown in Figure 13.
Jul 6, 2024
Support Communities
