LTC2231 - 10-Bit, 135Msps ADCs
Features
- Sample Rate: 170Msps/135 Msps
- 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: 890mW/660mW
- LVDS, CMOS, or Demultiplexed CMOS Outputs
- 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
185Msps: LTC2220-1 (12-Bit)
170Msps: LTC2220 (12-Bit), LTC2230 (10-Bit)
135Msps: LTC2221 (12-Bit), LTC2231 (10-Bit) - 64-Pin 9mm x 9mm QFN Package
Typical Application
Description
The LTC2230 and LTC2231 are 170Msps/135Msps, sampling 10-bit A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2230/LTC2231 are perfect for demanding communications applications with AC performance that includes 61dB SNR and 75dB spurious free dynamic range for signals up to 200MHz. Ultralow jitter of 0.15psRMS allows undersampling of IF frequencies with excellent noise performance.
DC specs include ±0.2LSB INL (typ), ±0.1LSB DNL (typ) and no missing codes over temperature. The transition noise is a low 0.12LSBRMS.
The digital outputs can be either differential LVDS, or single-ended CMOS. There are three format options for the CMOS outputs: a single bus running at the full data rate or two demultiplexed buses running at half data rate with either interleaved or simultaneous update. A separate output power supply allows the CMOS output swing to range from 0.5V to 3.6V.
The ENC+ and ENC– inputs may be driven differentially or single ended with a sine wave, PECL, LVDS, TTL, or CMOS inputs. An optional clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles.
Packaging
For complete and up to date package information and drawings, please refer to our packaging page
QFN-64
Order Info
- Part numbers ending in PBF are lead free. Please contact LTC marketing for information on lead based finish parts.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) | Price (1k)* | RoHS Data |
|---|---|---|---|---|---|---|
| LTC2231CUP | QFN | 64 | C | $27.67 | $20.00 | View |
| LTC2231CUP#PBF | QFN | 64 | C | $27.67 | $20.00 | View |
| LTC2231CUP#TR | QFN | 64 | C | $20.10 | View | |
| LTC2231CUP#TRPBF | QFN | 64 | C | $20.10 | View | |
| LTC2231IUP | QFN | 64 | I | $33.20 | $24.00 | View |
| LTC2231IUP#PBF | QFN | 64 | I | $33.20 | $24.00 | View |
| LTC2231IUP#TR | QFN | 64 | I | $24.10 | View | |
| LTC2231IUP#TRPBF | QFN | 64 | I | $24.10 | View | |
| Buy Now • Request Samples | ||||||
Demo Boards
Linear Technology demo boards are offered free of charge to qualified customers. Contact your local sales office or distributor to request 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 |
|---|---|---|---|
| DC750A-D | LTC2231CUP | High Speed ADC, VCC = +3.3V, 135Msps, 10-Bit 1MHz < AIN < 100MHz (Requires DC890 and LVDS_TRANSFORMER) | $200.00 | |
| DC750A-H | LTC2231CUP | High Speed ADC, VCC = +3.3V, 135Msps, 10-Bit AIN > 100MHz (Requires DC890 and LVDS_TRANSFORMER) | $200.00 | |
| Buy Now | |||
Companion Boards
| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC890_LVDS_XFMR | LVDS Power Transformer, goes with DC890B/ LVDS output demoboards | Contact Factory | |
| DC890B | High Speed (up to 250Mbps, CMOS/LVDS) USB Data Collection Board | $300.00 | |
| Buy Now | |||
Applications
- Wireless and Wired Broadband Communication
- Cable Head-End Systems
- Power Amplifier Linearization
- Communications Test Equipment
Simulate
LTspice IV is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. To download LTspice IV and other FREE simulation tools, please visit our Design Simulation page.
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.