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Dual SPI interface maximizes data transfer for 12-bit A/D converters

Sunnyvale, Calif.—Maxim Integrated Products has introduced the MAX1377/MAX1379/MAX1383 dual, 12-bit, 1.25Msps, simultaneous-sampling A/D converters.

Each of the two A/D converters features an independent serial peripheral interface (SPI) for host communication, allowing the fastest clock required on each interface to be reduced to 20MHz while supporting the maximum sampling rate. Alternatively, designers can combine the two data streams to use only a single SPI port if the sampling rate is slower or if the host's SPI interface can operate in excess of 40MHz.

This flexible architecture broadens the choice of host microcontrollers or DSPs. To further enhance flexibility, the inputs can be configured as either four single-ended or two differential channels to allow the same MAX1377/MAX1379/MAX1383 platform to be used for different applications. This configurability reduces inventory requirements and speeds time to market.

AC performance of 71dB SINAD), guaranteed DC accuracy of ± 1.25 LSB INL, max and ±1 LSB DNL, max), and fast simultaneous sampling make these devices ideal for motor-control, rotary-resolver, and I/Q-sampling applications.

The MAX1377/MAX1379/MAX1383 are fully specified over the -40°C to +125 °C automotive temperature range, and are available in a space-saving, 5mm x 5mm, 20-pin TQFN package.

Pricing: Starts at $4.98 (1000-up, FOB USA).
Availability: Now.
Datasheet: Click here.

Maxim Integrated Products, www.maxim-ic.com

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