Overview
The ADS7948SRTER, produced by Texas Instruments, is a 10-bit, dual-channel, successive approximation register (SAR) analog-to-digital converter (ADC). This device is part of the ADS794x family, which includes pin-compatible 12-bit, 10-bit, and 8-bit ADCs. The ADS7948 is known for its high resolution, high throughput, and ultra-low power consumption, making it suitable for a wide range of data acquisition applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 10 Bits | |
| Sample Rate | Up to 2.57 MSPS | |
| Analog Supply Voltage | 2.7 V to 5.5 V | V |
| Digital Supply Voltage | 1.65 V to AVDD | V |
| Integral Linearity | ±0.3 LSB | |
| Differential Linearity | ±0.3 LSB | |
| Signal-to-Noise Ratio (SNR) | 72 dB (min) at 100 kHz | dB |
| Power Consumption at 2 MSPS | 7.5 mW | mW |
| Operating Temperature Range | –40°C to +125°C | °C |
| Package Type | 3-mm × 3-mm WQFN |
Key Features
- High resolution and high throughput with a sample rate of up to 2.57 MSPS.
- Ultra-low power consumption: 7.5 mW at 2 MSPS, with automatic power-down at lower speeds.
- Excellent performance: No missing codes, INL of ±0.3 LSB, and SNR of 72 dB (min) at 100 kHz.
- Wide supply range: Analog supply from 2.7 V to 5.5 V and digital supply from 1.65 V to AVDD.
- SPI-compatible serial interface for easy interfacing with digital controllers.
- Tiny footprint in a 3-mm × 3-mm WQFN package.
Applications
- Communication systems
- Optical networking
- Medical instrumentation
- Battery-powered equipment
- Data acquisition systems
Q & A
- What is the resolution of the ADS7948SRTER?
The ADS7948SRTER has a resolution of 10 bits. - What is the maximum sample rate of the ADS7948SRTER?
The maximum sample rate is up to 2.57 MSPS. - What is the power consumption of the ADS7948SRTER at 2 MSPS?
The power consumption is 7.5 mW at 2 MSPS. - What is the operating temperature range of the ADS7948SRTER?
The operating temperature range is –40°C to +125°C. - What type of package does the ADS7948SRTER come in?
The ADS7948SRTER comes in a 3-mm × 3-mm WQFN package. - Does the ADS7948SRTER support automatic power-down?
Yes, the ADS7948SRTER supports automatic power-down at lower speeds. - What is the signal-to-noise ratio (SNR) of the ADS7948SRTER?
The SNR is 72 dB (min) at 100 kHz. - Is the ADS7948SRTER compatible with SPI interfaces?
Yes, the ADS7948SRTER has an SPI-compatible serial interface. - What are some typical applications of the ADS7948SRTER?
Typical applications include communication systems, optical networking, medical instrumentation, battery-powered equipment, and data acquisition systems. - What is the differential linearity of the ADS7948SRTER?
The differential linearity is ±0.3 LSB.
