LTC2252 - 12-Bit, 105Msps Low Power 3V ADCs
The LTC2253/LTC2252 are 12-bit 125Msps/105Msps, low power 3V A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2253/LTC2252 are perfect for demanding imaging and communications applications with AC performance that includes 70.1dB SNR and 85dB 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 0.32LSBRMS.
A single 3V supply allows low power operation. A separate output supply allows the outputs to drive 0.5V to 3.3V logic.
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.
Features- Sample Rate: 125Msps/105Msps
- Single 3V Supply (2.85V to 3.4V)
- Low Power: 395mW/320mW
- 70.2dB SNR
- 88dB SFDR
- No Missing Codes
- Flexible Input: 1VP-P to 2VP-P Range
- 640MHz 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
Typical Application
 | Applications- Wireless and Wired Broadband Communication
- Imaging Systems
- Ultrasound
- Spectral Analysis
- Portable Instrumentation
Packaging |
Order Information
| Part Number | Package | Temp | Price(1-99) | Price (1k)* |
|---|
| LTC2252CUH#PBF | 5x5 QFN-32 | C | $32.86 | $23.00 |
| LTC2252CUH#TRPBF | 5x5 QFN-32 | C | | $23.10 |
| LTC2252IUH#PBF | 5x5 QFN-32 | I | $39.43 | $27.60 |
| LTC2252IUH#TRPBF | 5x5 QFN-32 | I | | $27.70 |
Demo Boards
| Part Number | Description | Price |
|---|
| DC782A-V | LTC2252IUH | High Speed ADC, VDD = +3.0V, 105Msps, 12-Bit 10MHz < Ain < 170MHz, req DC718 | $200.00 |
Companion Boards
| Part Number | Description | Price |
|---|
| DC718C | USB Data Acquisition Controller, for PScope Evaluation Kits (<135Mbps) | $300.00 |
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