DocumentationDatasheet
Reliability Data
Product Selector Card
Press Release
Software and Simulation
cad_symbol
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
Description
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.
5x5 QFN-32
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LTC2253CUH#PBF | QFN | 32 | C | $39.29 | $27.50 |
| LTC2253CUH#TRPBF | QFN | 32 | C | $27.60 | |
| LTC2253IUH#PBF | QFN | 32 | I | $47.14 | $33.00 |
| LTC2253IUH#TRPBF | QFN | 32 | I | $33.10 | |
| LTC2253CUH | QFN | 32 | C | $78.58 | $55.00 |
| LTC2253CUH#TR | QFN | 32 | C | $55.20 | |
| LTC2253IUH | QFN | 32 | I | $94.28 | $66.00 |
| LTC2253IUH#TR | QFN | 32 | I | $66.20 |
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.
| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC782A-U | LTC2253IUH | High Speed ADC, VDD = +3.0V, 125Msps, 12-Bit 10MHz < Ain < 170MHz, req DC718 | $200.00 |
Companion Boards
| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC718C | USB Data Acquisition Controller, for PScope Evaluation Kits (<135Mbps) | $300.00 |