LTC2227 Datasheet

• Sample Rate: 40Msps
• Single 3V Supply (2.7V to 3.4V)
• Low Power: 205mW/120mW/75mW
• 71.3dB SNR
• 90dB SFDR
• No Missing Codes
• 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
  • 125Msps: LTC2253 (12-Bit), LTC2255 (14-Bit)
  • 105Msps: LTC2252 (12-Bit), LTC2254 (14-Bit)
  • 80Msps: LTC2229 (12-Bit), LTC2249 (14-Bit)
  • 65Msps: LTC2228 (12-Bit), LTC2248 (14-Bit)
  • 40Msps: LTC2227 (12-Bit), LTC2247 (14-Bit)
  • 25Msps: LTC2226 (12-Bit), LTC2246 (14-Bit)
  • 10Msps: LTC2225 (12-Bit), LTC2245 (14-Bit)
• 32-Pin (5mm × 5mm) QFN Package

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

The LTC2227 are 12-bit 40Msps, low power 3V A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2227 are perfect for demanding imaging and communications applications with AC performance that includes 71dB SNR and 80dB 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 3.6Vlogic.

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.