Catalog
Dual 14-Bit, 25Msps Low Power 3V ADCs
Key Features
• Integrated Dual 14-Bit ADCs
• Sample Rate: 65Msps/40Msps/25Msps
• Single 3V Supply (2.7V to 3.4V)
• Low Power: 400mW/235mW/150mW
• 74.3dB SNR
• 90dB SFDR
• 110dB Channel Isolation at 100MHz
• Multiplexed or Separate Data Bus
• Flexible Input: 1VP-Pto 2VP-PRange
• 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)
• 64-Pin (9mm × 9mm) QFN Package
Description
AI
The LTC2298/LTC2297/LTC2296 are 14-bit 65Msps/40Msps/25Msps, low power dual 3V A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2298/LTC2297/LTC2296 are perfect for demanding imaging and communications applications with AC performance that includes 74.3dB SNR and 90dB SFDR for signals at the Nyquist frequency.DC specs include ±1.2LSB INL (typ), ±0.5LSB DNL (typ) and no missing codes over temperature. The transition noise is a low 1LSBRMS.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.ApplicationsWireless and Wired Broadband CommunicationImaging SystemsSpectral AnalysisPortable Instrumentation