Overview
Features and Benefits
- 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-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), 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
Product Details
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.
Applications
- Wireless and Wired Broadband Communication
- Imaging Systems
- Spectral Analysis
- Portable Instrumentation
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At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
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