Dual 10-Bit, 25Msps Low Noise 3V ADCs

The LTC2288/LTC2287/LTC2286 are 10-bit 65Msps/ 40Msps/25Msps, low noise dual 3V A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2288/LTC2287/LTC2286 are perfect for demanding imaging and communications applications with AC performance that includes 61.8dB SNR and 85dB SFDR for signals at the Nyquist frequency.

DC specs include ±0.1LSB INL (typ), ±0.05LSB DNL (typ) and ±0.6 LSB INL, ±0.5 LSB DNL over temperature. The transition noise is a low 0.07LSBRMS.

A single 3V supply allows low power operation. A separate output supply allows the outputs to drive 0.5V to 3.6V logic. An optional multiplexer allows both channels to share one digital output bus.

A single-ended CLK input controls converter operation. An optional clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles.

Applications

* Wireless and Wired Broadband Communication

* Imaging Systems

* Spectral Analysis

* Portable Instrumentation

* Integrated Dual 10-Bit ADCs

* Sample Rate: 65Msps/40Msps/25Msps

* Single 3V Supply (2.7V to 3.4V)

* Low Power: 400mW/235mW/150mW

* 61.8dB SNR

* 85dB SFDR

* 110dB Channel Isolation at 100MHz

* Multiplexed or Separate Data Bus

* Flexible Input: 1VP-P to 2VP-P Range

* 575MHz Full Power Bandwidth S/H

* Clock Duty Cycle Stabilizer

* Shutdown and Nap Modes

* Pin Compatible Family

* 105Msps: LTC2282 (12-Bit), LTC2280 (10-Bit)

* 80Msps: LTC2294 (12-Bit), LTC2289 (10-Bit)

* 65Msps: LTC2293 (12-Bit), LTC2288 (10-Bit)

* 40Msps: LTC2292 (12-Bit), LTC2287 (10-Bit)

* 25Msps: LTC2291 (12-Bit), LTC2286 (10-Bit)

* 64-Pin (9mm × 9mm) QFN Package