Product category: Analogue and Mixed Signal ICs
News Release from: Texas Instruments (April 2001-March 2006) | Subject: DAC2932
Edited by the Electronicstalk Editorial Team on 16 September 2003
Speedy DAC is
frugal in handheld applications
The DAC2932 is claimed to be the industry's lowest power dual, 12bit, 40Msample/s digital-analogue convertor
Offering an unmatched combination of low power dissipation and wide dynamic range, the DAC2932 is optimised for use in the transmit section of communications systems, such as wireless PC modem cards, wireless network cards and handheld radios. The device is also well suited for a variety of portable test equipments, direct digital synthesis (DDS), portable medical instrumentation and arbitrary waveform generators (AWG).
This article was originally published on Electronicstalk on 16 September 2003 at 8.00am (UK)
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The DAC2932 features 29mW power dissipation, 75dB spurious-free dynamic range, +2.7 to +3.3V single-supply operation and the integration of four 12bit voltage-output DACs for signal path control.
Further optimisation can be achieved by lowering the output current with an adjustable full-scale range of 0.5 to 2mA.
A power-down mode reduces power dissipation to only 25uW.
'The DAC2932 provides customers with the lowest power per channel of any high-speed DAC in the 12bit, 40Msample/s segment', said Mark Stropoli, Product Marketing Manager for TI's high-speed data convertor products.
'Additionally, the integration of four control DACs can reduce component count, simplify system control and lower overall cost'.
The DAC2932 has a high-impedance differential current output, which allows for either a differential or single-ended analogue signal interface.
The device incorporates a temperature compensated 1.22V bandgap reference and also allows for additional flexibility of using an external reference.
It is designed to operate with a single parallel data port.
The DAC2932 is packaged in a TQFP-48 and is priced from $7.95 in 1000-piece quantities (suggested resale pricing).
The device is available now from TI and its authorised distributors.
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