Datasheet
Reliability Data
Product Selector Card
Software and Simulation
cad_symbol
Features
- Sample Rate: 65Msps/40Msps/25Msps
- Single 3V Supply (2.7V to 3.4V)
- Low Power: 205mW/120mW/75mW
- 61.8dB SNR
- 85dB SFDR
- No Missing Codes
- 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:
125Msps: LTC2251 (10-Bit), LTC2253 (12-Bit)
105Msps: LTC2250 (10-Bit), LTC2252 (12-Bit)
80Msps: LTC2239 (10-Bit), LTC2229 (12-Bit)
65Msps: LTC2238 (10-Bit), LTC2228 (12-Bit)
40Msps: LTC2237 (10-Bit), LTC2227 (12-Bit)
25Msps: LTC2236 (10-Bit), LTC2226 (12-Bit) - 32-Pin (5mm × 5mm) QFN Package
Typical Application
Description
The LTC2238/LTC2237/LTC2236 are 10-bit 65Msps/40Msps/25Msps, low power 3V A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2238/LTC2237/LTC2236 are perfect for demanding imaging and communications applications with AC performance that includes 61.8dB SNR and 85dB SFDR for signals at the Nyquist frequency.DC specs include ±0.1LSB INL (typ), ±0.05LSB DNL (typ) and ±0.5LSB INL, ±0.5LSB DNL over temperature. The transition noise is a low 0.07LSBRMS.
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)* |
|---|---|---|---|---|---|
| LTC2236CUH#PBF | QFN | 32 | C | $4.67 | $3.50 |
| LTC2236CUH#TRPBF | QFN | 32 | C | $3.60 | |
| LTC2236IUH#PBF | QFN | 32 | I | $5.60 | $4.20 |
| LTC2236IUH#TRPBF | QFN | 32 | I | $4.30 | |
| LTC2236CUH | QFN | 32 | C | $9.34 | $7.00 |
| LTC2236IUH | QFN | 32 | I | $11.20 | $8.40 |
| LTC2236CUH#TR | QFN | 32 | C | $7.20 | |
| LTC2236IUH#TR | QFN | 32 | I | $8.60 |
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-P | LTC2236IUH | High Speed ADC, VDD = +3.0V, 25Msps, 10-Bit 1MHz < Ain < 70MHz, req DC718 | $200.00 |
Companion Boards
| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC718C | USB Data Acquisition Controller, for PScope Evaluation Kits (<135Mbps) | $300.00 |