LTC2293 Datasheet

• Integrated Dual 12-Bit ADCs
• Sample Rate: 65Msps/40Msps/25Msps
• Single 3V Supply (2.7V to 3.4V)
• Low Power: 400mW/235mW/150mW
• 71.3 dB 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

• Wireless and Wired Broadband Communication
• Imaging Systems
• Spectral Analysis
• Portable Instrumentation

The LTC2293 are 12-bit 65Msps, low power dual 3V A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2293 are perfect for demanding imaging and communications applications with AC performance that includes 71.3dB SNR and 90dB 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.