LTC2755 - Quad Current Output 12-/14-/16-Bit SoftSpan DACs with Parallel I/O
Features
- Program or Pin-Strap Six Output Ranges
Unipolar: 0V to 5V, 0V to 10V
Bipolar: ±5V, ±10V, ±2.5V, –2.5V to 7.5V - Maximum 16-Bit INL Error: ±1 LSB over Temperature
- Low 1μA (Maximum) Supply Current
- Guaranteed Monotonic over Temperature
- Low Glitch Impulse 1nV•s
- 2.7V to 5.5V Single Supply Operation
- 2μs Settling Time to ±1 LSB
- Parallel Interface with Readback of All Registers
- Asynchronous CLR Pin Clears DAC Outputs to 0V in
- Any Output Range
- Power-On Reset to 0V
- 64-Pin 9mm x 9mm QFN Package
Typical Application
Description
The LTC2755 is a family of quad 12-, 14-, and 16-bit multiplying parallel-input, current-output DACs. These DACs operate from a single 2.7V to 5.5V supply and are all guaranteed monotonic over temperature. The LTC2755A-16 provides 16-bit performance (±1LSB INL and DNL) over temperature without any adjustments. These SoftSpan DACs offer six output ranges—two unipolar and four bipolar—that can be programmed through the parallel interface, or pinstrapped for operation in a single range.The LTC2755 DACs use a bidirectional input/output parallel interface that allows readback of any internal register, including the DAC output span settings. A power-on reset circuit resets the DAC outputs to 0V when power is initially applied. A logic low on the CLR pin asynchronously clears the DACs to 0V in any output range. The parts are specified over commercial and industrial temperature ranges.
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 |
|---|---|---|---|---|---|
| LTC2755ACUP-16#PBF | 9x9 QFN-64 | UP | C | 05-08-1705 | Yes |
| LTC2755ACUP-16#TRPBF | 9x9 QFN-64 | UP | C | 05-08-1705 | Yes |
| LTC2755AIUP-16#PBF | 9x9 QFN-64 | UP | I | 05-08-1705 | Yes |
| LTC2755AIUP-16#TRPBF | 9x9 QFN-64 | UP | I | 05-08-1705 | Yes |
| LTC2755BCUP-16#PBF | 9x9 QFN-64 | UP | C | 05-08-1705 | Yes |
| LTC2755BCUP-16#TRPBF | 9x9 QFN-64 | UP | C | 05-08-1705 | Yes |
| LTC2755BIUP-16#PBF | 9x9 QFN-64 | UP | I | 05-08-1705 | Yes |
| LTC2755BIUP-16#TRPBF | 9x9 QFN-64 | UP | I | 05-08-1705 | Yes |
| LTC2755CUP-12#PBF | 9x9 QFN-64 | UP | C | 05-08-1705 | Yes |
| LTC2755CUP-12#TRPBF | 9x9 QFN-64 | UP | C | 05-08-1705 | Yes |
| LTC2755CUP-14#PBF | 9x9 QFN-64 | UP | C | 05-08-1705 | Yes |
| LTC2755CUP-14#TRPBF | 9x9 QFN-64 | UP | C | 05-08-1705 | Yes |
| LTC2755IUP-12#PBF | 9x9 QFN-64 | UP | I | 05-08-1705 | Yes |
| LTC2755IUP-12#TRPBF | 9x9 QFN-64 | UP | I | 05-08-1705 | Yes |
| LTC2755IUP-14#PBF | 9x9 QFN-64 | UP | I | 05-08-1705 | Yes |
| LTC2755IUP-14#TRPBF | 9x9 QFN-64 | UP | I | 05-08-1705 | 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 | |
|---|---|---|---|---|---|---|
| LTC2755ACUP-16#PBF | 9x9 QFN-64 | C | $29.90 | $19.70 | Yes | |
| LTC2755ACUP-16#TRPBF | 9x9 QFN-64 | C | $19.76 | Yes | ||
| LTC2755AIUP-16#PBF | 9x9 QFN-64 | I | $35.88 | $23.64 | Yes | |
| LTC2755AIUP-16#TRPBF | 9x9 QFN-64 | I | $23.70 | Yes | ||
| LTC2755BCUP-16#PBF | 9x9 QFN-64 | C | $27.09 | $17.85 | Yes | |
| LTC2755BCUP-16#TRPBF | 9x9 QFN-64 | C | $17.91 | Yes | ||
| LTC2755BIUP-16#PBF | 9x9 QFN-64 | I | $32.51 | $21.42 | Yes | |
| LTC2755BIUP-16#TRPBF | 9x9 QFN-64 | I | $21.48 | Yes | ||
| LTC2755CUP-12#PBF | 9x9 QFN-64 | C | $13.07 | $9.15 | Yes | |
| LTC2755CUP-12#TRPBF | 9x9 QFN-64 | C | $9.21 | Yes | ||
| LTC2755CUP-14#PBF | 9x9 QFN-64 | C | $19.20 | $12.65 | Yes | |
| LTC2755CUP-14#TRPBF | 9x9 QFN-64 | C | $12.71 | Yes | ||
| LTC2755IUP-12#PBF | 9x9 QFN-64 | I | $15.69 | $10.98 | Yes | |
| LTC2755IUP-12#TRPBF | 9x9 QFN-64 | I | $11.04 | Yes | ||
| LTC2755IUP-14#PBF | 9x9 QFN-64 | I | $23.04 | $15.18 | Yes | |
| LTC2755IUP-14#TRPBF | 9x9 QFN-64 | I | $15.24 | 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 |
|---|---|---|---|
| DC1112A | LTC2755: 16-bit, Quad, SoftSpan, 1LSB INL Iout DAC, req. DC590 | $100.00 | |
| Buy Now | |||
Companion Boards
| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC590B | Isolated USB Serial Controller for Linear Technology QuikEval-Compatible Demo Boards | $50.00 | |
| Buy Now | |||
Applications
- High Resolution Offset and Gain Adjustment
- Process Control and Industrial Automation
- Automatic Test Equipment
- Data Acquisition Systems
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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.
