Overview
The ISL26134AVZ-T7A, produced by Renesas Electronics America Inc., is a high-performance, very low noise 24-bit delta-sigma Analog-to-Digital Converter (ADC). This device is part of the ISL26134 series, which includes a programmable gain amplifier and is designed for precision measurement applications. The ISL26134AVZ-T7A is available in a 28-lead TSSOP package and is specified for operation over the automotive temperature range of -40°C to +105°C.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 24 bits | |
| Data Rate (Internal Oscillator, High Speed) | 80 SPS | |
| Data Rate (Internal Oscillator, Low Speed) | 10 SPS | |
| Data Rate (External Oscillator, High Speed) | fCLK/61440 SPS | |
| Data Rate (External Oscillator, Low Speed) | fCLK/491520 SPS | |
| Analog Supply Voltage | +5V | V |
| Digital Supply Voltage | +2.7V to +5V | V |
| Differential Input Voltage Range | ±0.5VREF/Gain | V |
| Common Mode Input Voltage Range (Gain = 1, 2) | AGND - 0.1 to AVDD + 0.1 | V |
| Common Mode Input Voltage Range (Gain = 64, 128) | AGND + 1.5 to AVDD - 1.5 | V |
| RMS Noise (PGA = 128x, 10 SPS) | 10.6 nV | |
| Linearity Error | 0.0002% FS | |
| Number of Analog Input Channels | 4 | |
| Package Type | 28-lead TSSOP | |
| Operating Temperature Range | -40°C to +105°C | °C |
Key Features
- Up to 21.6 noise-free bits performance using a third-order delta-sigma modulator.
- Low noise amplifier with gains of 1x, 2x, 64x, and 128x.
- Simultaneous rejection of 50Hz and 60Hz noise at 10 SPS.
- Four-channel differential input multiplexer.
- On-chip temperature sensor (not available on ISL26134, but present in the ISL26132 model).
- Automatic clock source detection.
- Simple interface to read conversions.
- Pb-Free (RoHS compliant).
Applications
- Weigh scales.
- Temperature monitors and controls.
- Industrial process control.
- Pressure sensors.
Q & A
- What is the resolution of the ISL26134AVZ-T7A ADC?
The ISL26134AVZ-T7A has a resolution of 24 bits. - What are the available gain settings for the programmable gain amplifier?
The gain settings are 1x, 2x, 64x, and 128x. - What is the typical RMS noise at 10 SPS with a gain of 128x?
The RMS noise is 10.6 nV at 10 SPS with a gain of 128x. - What is the linearity error of the ISL26134AVZ-T7A?
The linearity error is 0.0002% FS. - How many analog input channels does the ISL26134AVZ-T7A have?
The ISL26134AVZ-T7A has four analog input channels. - What is the operating temperature range of the ISL26134AVZ-T7A?
The operating temperature range is -40°C to +105°C. - What type of package is the ISL26134AVZ-T7A available in?
The ISL26134AVZ-T7A is available in a 28-lead TSSOP package. - Is the ISL26134AVZ-T7A RoHS compliant?
Yes, the ISL26134AVZ-T7A is Pb-Free (RoHS compliant). - What are some common applications for the ISL26134AVZ-T7A?
Common applications include weigh scales, temperature monitors and controls, industrial process control, and pressure sensors. - Can the ISL26134AVZ-T7A operate from an external clock source or crystal oscillator?
Yes, the device can operate from an external clock source, crystal oscillator, or the on-chip oscillator.
