Fastest 18-bit SAR ADC

Analogue, Mixed Signal, LSI

Analog IC suppliers

Digital IC suppliers

Microwave semiconductor & tube suppliers

printer friendly version

23 October 2013 Analogue, Mixed Signal, LSI

Analog Devices has unveiled an 18-bit PulSAR analog-to-digital converter (ADC) whose 5 MSps throughput it claims is twice the speed of any available SAR (successive-approximation register) converter. With its high throughput, low noise floor and high linearity, the AD7960 was designed for low-power signal chains, multiplexed systems such as digital X-ray, and oversampling applications including spectroscopy, MRI gradient control and gas chromatography.

The chip consumes 39 mW at 5 MSps and is optimised for excellent DC linearity (±0,8 LSB INL) and AC performance (99 dB SNR) even at full throughput. It also features a noise floor of 22,4 nV/Hz relative to its full scale input which, combined with a small package size, helps designers meet space, thermal, power and other key design challenges common to high-channel-density systems.

Released in parallel with the AD7960 is the AD7961, a 16-bit PulSAR ADC which achieves a signal-to-noise ratio of 95,5 dB and INL of ±0,2 LSB at 5 MSps.

The two ICs provide a pin-compatible upgrade/downgrade path for 16- and 18-bit data acquisition applications in instrumentation and healthcare. They include a flexible, low-noise LVDS (low-voltage differential signalling) interface which transfers data off chip at speeds up to 300 MHz.

Related evaluation tools such as reference circuits, development kits and FPGA mezzanine cards include all HDL code and device drivers for easy integration with FPGAs and support faster development in a simplified design environment.

For more information contact Erich Nast, Avnet Kopp, +27 (0)11 319 8600, [email protected], www.avnet.co.za

Share this article:

Combining a LPF and ADC driver for a 20 Vp-p signal
Altron Arrow Analogue, Mixed Signal, LSI
A mixed-signal ADC driver circuit’s optimum performance depends on multiple variables: the driver’s settling time, the RC filter’s time constant, driving impedance, and the ADC sampling capacitor’s kickback current, all interact during acquisition time and contribute towards sampling errors.

Read more...

Pressure sensor with NextNav certification
EBV Electrolink Analogue, Mixed Signal, LSI
STMicroelectronics’ LPS22DF pressure sensor has received a NextNav certification, which guarantees performance and reliability for geolocation and other types of applications.

Read more...

Reference design for Raspberry Pi analogue I/O
Analogue, Mixed Signal, LSI
Analogue Devices has published a reference design for ±10 V analogue input and ±15 V analogue output for Raspberry Pi platforms.

Read more...

Multi-zone distance sensor with 90° field of view
Avnet Silica Analogue, Mixed Signal, LSI
STMicroelectronics has revealed a new FlightSense multi-zone distance sensor, with 90° field of view, to bring lifelike situational awareness to applications like home automation, computers, robots, and smart equipment.

Read more...

Six-axis IMU with Qvar sensing channel
Altron Arrow Analogue, Mixed Signal, LSI
The LSM6DSV16X from STMicroelectronics is a high-performance, low-power six-axis IMU, featuring a three-axis digital accelerometer and a three-axis digital gyroscope.

Read more...

Bidirectional current-sense amplifier with PWM
RS South Africa Analogue, Mixed Signal, LSI
The MAX49925 from Analogue Devices is a bidirectional current-sense amplifier (CSA) with an input common-mode range that extends from -40 to 76 V, making it suitable for 48 V HEV applications where there are large automotive transients.

Read more...

Categories

Analogue, Mixed Signal, LSI

Fastest 18-bit SAR ADC

Further reading:

Publications by Technews