LTC2195 - 16-Bit, 125Msps Low Power Dual ADCs
Features
- 2-Channel Simultaneous Sampling ADC
- Serial LVDS Outputs: 1, 2 or 4 Bits per Channel
- 76.8dB SNR
- 90dB SFDR
- Low Power: 432mW/360mW/249mW Total
- 216mW/180mW/125mW per Channel
- Single 1.8V Supply
- Selectable Input Ranges: 1VP-P to 2VP-P
- 550MHz Full-Power Bandwidth S/H
- Shutdown and Nap Modes
- Serial SPI Port for Configuration
- 52-Pin (7mm × 8mm) QFN Package
Typical Application
Description
The LTC®2195/LTC2194/LTC2193 are 2-channel, simultaneous sampling 16-bit A/D converters designed for digitizing high frequency, wide dynamic range signals. They are perfect for demanding communications applications with AC performance that includes 76.8dB SNR and 90dB spurious free dynamic range (SFDR). Ultralow jitter of 0.07psRMS allows undersampling of IF frequencies with excellent noise performance.
DC specs include ±2LSB INL (typ), ±0.5LSB DNL (typ) and no missing codes over temperature. The transition noise is 3.4LSBRMS.
To minimize the number of data lines the digital outputs are serial LVDS. Each channel outputs two bits or four bits at a time. At lower sampling rates there is a one bit per channel option. The LVDS drivers have optional internal termination and adjustable output levels to ensure clean signal integrity.
The ENC+ and ENC– inputs may be driven differentially or single ended with a sine wave, PECL, LVDS, TTL or CMOS inputs. An internal clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles.
Packaging
CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.
For complete and up to date package information and drawings, please refer to our packaging page
| Part Number | Package | Code | Temp | Package Drawing |
RoHS |
|---|---|---|---|---|---|
| LTC2195CUKG#PBF | 7x8 QFN-52 | UKG | C | 05-08-1729 | Yes |
| LTC2195CUKG#TRPBF | 7x8 QFN-52 | UKG | C | 05-08-1729 | Yes |
| LTC2195IUKG#PBF | 7x8 QFN-52 | UKG | I | 05-08-1729 | Yes |
| LTC2195IUKG#TRPBF | 7x8 QFN-52 | UKG | I | 05-08-1729 | Yes |
Order Info
- Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
- 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 | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LTC2195CUKG#PBF | 7x8 QFN-52 | C | $145.71 | $102.00 | Yes | |
| LTC2195CUKG#TRPBF | 7x8 QFN-52 | C | $102.06 | Yes | ||
| LTC2195IUKG#PBF | 7x8 QFN-52 | I | $174.86 | $122.40 | Yes | |
| LTC2195IUKG#TRPBF | 7x8 QFN-52 | I | $122.46 | Yes | ||
| Buy Now • Request Samples | ||||||
Demo Boards
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 |
|---|---|---|---|
| DC1763A-A | LTC2195: 16-bit 125Msps ADC, Serial LVDS Outputs, 5-170MHz, req DC1371 and DC1075 | $200.00 | |
| Buy Now | |||
Companion Boards
| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC1075A | Clock Divider board | $50.00 | |
| DC1371B | FMC High-Speed Data Acquisition Board | $1,950.00 | |
| Buy Now | |||
Applications
- Communications
- Cellular Base Stations
- Software-Defined Radios
- Portable Medical Imaging
- Multi-Channel Data Acquisition
- Nondestructive Testing
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Design Tools
Linear Technology provides a variety of custom design simulation tools and device models to allow even novice designers to quickly and easily evaluate circuits using high performance switching regulators, amplifiers, data converters, filters and more. Please visit our Design Tools page to view and download:
- LTspice - A powerful SPICE simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators
- LTpowerCAD - A complete power supply selection, synthesis and design tool
- LTpowerPlay - A development environment supporting Linear Technology's Digital Power System Management (PSM) products
- PScope & QuikEval - USB-based product demonstration and data acquisition system for use with our ADCs, DACs, and more
- Linduino - Arduino compatible system for developing and distributing firmware libraries and example code
- LinearLab Tools - A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards
- And More!
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.
