Description

The LTC2232IUK is a 105Msps/80Msps analog to digital converter (ADC) that is designed for digitizing high frequency, wide dynamic range signals. This ADC is perfect for demanding communications applications with remarkable AC performance, including 61dB signal-to-noise ratio (SNR) and 75dB spurious free dynamic range (SFDR) for signals up to 200MHz. It also offers ultralow jitter of 0.15psRMS, allowing for undersampling of intermediate frequency (IF) frequencies with excellent noise performance.

Specifications and features

- Sample Rate: 105Msps/80Msps
- 61dB SNR up to 140MHz Input
- 75dB SFDR up to 200MHz Input
- 775MHz Full Power Bandwidth S/H
- Single 3.3V Supply
- Low Power Dissipation: 475mW/366mW
- Selectable Input Ranges: ±0.5V or ±1V
- No Missing Codes
- Optional Clock Duty Cycle Stabilizer
- Shutdown and Nap Modes
- Data Ready Output Clock
- Pin Compatible Family
135Msps: LTC2224 (12-Bit), LTC2234 (10-Bit)
105Msps: LTC2222 (12-Bit), LTC2232IUK (10-Bit)
80Msps: LTC2223 (12-Bit), LTC2233 (10-Bit)
- 48-Pin 7mm x 7mm QFN Package

Application Scenarios

- Wireless and Wired Broadband Communication
- Cable Head-End Systems
- Power Amplifier Linearization
- Communications Test Equipment

Comparison

- High sample rate of 105Msps/80Msps
- Wide dynamic range with 61dB SNR and 75dB SFDR
- Ultralow jitter of 0.15psRMS for excellent noise performance

- Requires a single 3.3V supply
- Power dissipation of 475mW/366mW