Convertor claims delta-sigma speed record

A Texas Instruments (April 2001-March 2006) product story

Edited by the Electronicstalk editorial team Sep 1, 2005

A new 16bit, 10Msample/s delta-sigma analogue-to-digital convertor claims an unmatched combination of speed and precision.

Providing an unmatched combination of speed and precision, Texas Instruments has released a new 16bit, 10Msample/s delta-sigma analogue-to-digital convertor (ADC).

Featuring 86dB signal-to-noise ratio (SNR) and 95dB spurious-free dynamic range (SFDR) over a 5MHz bandwidth, the ADS1610 provides state-of-the-art performance at 4x the speed of the nearest delta-sigma competition and 2x the speed of TI's previous delta-sigma solutions.

The ADS1610 is ideal for demanding measurements in communications, scientific instrumentation and test and measurement applications.

"Texas Instruments has leveraged its expertise in high-performance data conversion to once again push the boundaries in speed and precision", said Gregg Lowe, Senior Vice President of TI's high-performance analogue business.

"This breakthrough data convertor extends our industry-leading portfolio of delta-sigma ADCs and provides our customers with outstanding high-speed performance for their most demanding measurement applications".

The high-speed operation (10Msample/s) is ideal for high-accuracy applications requiring higher sampling speeds.

The 16bit resolution with 86dB SNR, 95dB SFDR and -94dB total harmonic distortion (THD) is ideal for high-speed applications requiring higher accuracy signal measurement.

A 4.4MHz passband with less than 0.0002dB of ripple provides wideband signal processing, while an on-chip digital filter simplifies anti-alias requirements compared with SAR and pipeline convertors.

The device operates from a +5V analogue supply and a +3V digital supply.

The ADS1610 is optimised to work with TI's high-performance TMS320 DSP platforms.

TI offers an extensive portfolio of wideband amplifiers well suited to drive the analogue inputs of the ADS1610, such as the THS4503 and THS4509.

The ADS1610 is pin compatible with TI's previously introduced ADS1605 (16bit, 5Msample/s ADC) and ADS1625 (18bit, 1.25Msample/s ADC) to provide an easy upgrade path.

The ADS1610 is sampling now, with volume production scheduled for 3Q 2005.

The device comes in a TQFP-64 package and is priced at $29.95 in 1000 piece quantities (suggested resale pricing).

Evaluation modules (EVMs) are also available.