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Pipelined 10- and 12-Bit A/D converters offer fast sampling

SANTA CLARA, CA, Nov. 3 — National Semiconductor Corporation introduced five new 10- and 12-bit converters that feature the industry's lowest power consumption and deliver excellent dynamic performance. These ADCs meet the stringent performance requirements of a variety of markets such as digital TV, high definition TV receivers, base station transceivers, communications receivers, data acquisition systems, medical imaging and consumer video.

These converters use a differential, pipeline architecture with digital error correction and an on-chip sample-and-hold circuit to provide a complete conversion solution, and to minimize power consumption, while providing excellent dynamic performance. A unique sample-and-hold stage yields a fullpower bandwidth of 400 MHz.

Uses a differential pipeline.
(Click to enlarge)


The ADC10080, ADC10065 and ADC10040 consume 78mW at 80 MSPS, 68mW at 65 MSPS, and 55mW at 40 MSPS, respectively. These products feature a 1.2V internal reference, eliminating the need for an external reference. The differential inputs on these ADCs provide a full-scale selectable input swing of 2Vpp, 1.5Vpp or 1Vpp. These ADCs also have a 400MHz -3dB bandwidth, enabling their use in high-IF applications such as communications receivers. All three products are pin-compatible.

The ADC12020 and ADC12010 are pin-compatible with National's existing 12-bit ADCs: the ADC12040, ADC12L063 and ADC12L066. This pin compatibility provides a straightforward migration path for designers, enabling reuse of existing printed circuit board designs on various platforms. In addition, these 5V ADCs consume only 185 mW at 20 MSPS and 160 mW at 10 MSPS, respectively.

The ADC10080 is available in 28-lead TSSOP packaging and is priced at $8.77. The ADC10065 is available in 28-lead TSSOP packaging and is priced at $6.56. The ADC10040 is available in 28-lead TSSOP packaging and is priced at $5.42. The ADC12010 is available in 32-lead LQFP packaging and is priced at $5.85. The ADC12020 is available in LQFP packaging and is priced at $8.57. All prices are in 1,000-unit quantities.

National Semiconductor Corporation Tel: +1-408-721-6929,

ADC10080
ADC10065
ADC10040
ADC12010
ADC12020

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