Analog Devices LTC2291 Product Info

• Integrated Dual 12-Bit ADCs
• Sample Rate: 65Msps/40Msps/25Msps
• Single 3V Supply (2.7V to 3.4V)
• Low Power: 400mW/235mW/150mW
• 71.3dB SNR
• 90dB SFDR
• 110dB Channel Isolation at 100MHz
• Multiplexed or Separate Data Bus
• Flexible Input: 1V_P-P to 2V_P-P Range
• 575MHz Full Power Bandwidth S/H
• Clock Duty Cycle Stabilizer
• Shutdown and Nap Modes
• Pin Compatible Family
  • 105Msps: LTC2282 (12-Bit), LTC2284 (14-Bit)
  • 80Msps: LTC2294 (12-Bit), LTC2299 (14-Bit)
  • 65Msps: LTC2293 (12-Bit), LTC2298 (14-Bit)
  • 40Msps: LTC2292 (12-Bit), LTC2297 (14-Bit)
  • 25Msps: LTC2291 (12-Bit), LTC2296 (14-Bit)
  • 10Msps: LTC2290 (12-Bit), LTC2295 (14-Bit)
• 64-Pin (9mm × 9mm) QFN Package

The LTC2293/LTC2292/LTC2291 are 12-bit 65Msps/40Msps/25Msps, low power dual 3V A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2293/LTC2292/LTC2291 are perfect for demanding imaging and communications applications with AC performance that includes 71.3dB SNR and905dB SFDR for signals at the Nyquist frequency.

DC specs include ±0.3LSB INL (typ), ±0.15LSB DNL (typ) and no missing codes over temperature. The transition noise is a low 0.25LSB_RMS.

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 a 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