LTC2704 - Quad 12-, 14- and 16-Bit Voltage Output SoftSpan DACs with Readback
Features
- Six Programmable Output Ranges:
Unipolar: 0V to 5V, 0V to 10V
Bipolar: ±5V, ±10V, ±2.5V, –2.5V to 7.5V - Serial Readback of All On-Chip Registers
- 1LSB INL and DNL Over the Industrial Temperature Range (LTC2704-14/LTC2704-12)
- Force/Sense Outputs Enable Remote Sensing
- Glitch Impulse: < 2nV-sec
- Outputs Drive ±5mA
- Pin Compatible 12-, 14- and 16-Bit Parts
- Power-On and Clear to Zero Volts
- 44-Lead SSOP Package
AEC-Q100 data available for specific packages
Typical Application
Description
The LTC2704-16/LTC2704-14/LTC2704-12 are serial input, 12-, 14- or 16-bit, voltage output SoftSpan™ DACs that operate from 3V to 5V logic and ±5V to ±15V analog supplies. SoftSpan offers six output spans—two unipolar and four bipolar—fully programmable through the 3-wire SPI serial interface. INL is accurate to 1LSB (2LSB for the LTC2704-16). DNL is accurate to 1LSB for all versions.
Readback commands allow verification of any on-chip register in just one 24- or 32- bit instruction cycle. All other commands produce a “rolling readback” response from the LTC2704, dramatically reducing the needed number of instruction cycles.
A Sleep command allows any combination of DACs to be powered down. There is also a reset flag and an offset adjustment pin for each channel.
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 |
|---|---|---|---|---|---|
| LTC2704CGW-12#PBF | SSOP-44 | GW | C | 05-08-1642 (GW44) | Yes |
| LTC2704CGW-12#TRPBF | SSOP-44 | GW | C | 05-08-1642 (GW44) | Yes |
| LTC2704CGW-14#PBF | SSOP-44 | GW | C | 05-08-1642 (GW44) | Yes |
| LTC2704CGW-14#TRPBF | SSOP-44 | GW | C | 05-08-1642 (GW44) | Yes |
| LTC2704CGW-16#PBF | SSOP-44 | GW | C | 05-08-1642 (GW44) | Yes |
| LTC2704CGW-16#TRPBF | SSOP-44 | GW | C | 05-08-1642 (GW44) | Yes |
| LTC2704IGW-12#PBF | SSOP-44 | GW | I | 05-08-1642 (GW44) | Yes |
| LTC2704IGW-12#TRPBF | SSOP-44 | GW | I | 05-08-1642 (GW44) | Yes |
| LTC2704IGW-14#PBF | SSOP-44 | GW | I | 05-08-1642 (GW44) | Yes |
| LTC2704IGW-14#TRPBF | SSOP-44 | GW | I | 05-08-1642 (GW44) | Yes |
| LTC2704IGW-16#PBF | SSOP-44 | GW | I | 05-08-1642 (GW44) | Yes |
| LTC2704IGW-16#TRPBF | SSOP-44 | GW | I | 05-08-1642 (GW44) | 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 | |
|---|---|---|---|---|---|---|
| LTC2704CGW-12#PBF | SSOP-44 | C | $29.21 | $19.95 | Yes | |
| LTC2704CGW-12#TRPBF | SSOP-44 | C | $20.01 | Yes | ||
| LTC2704CGW-14#PBF | SSOP-44 | C | $36.54 | $24.95 | Yes | |
| LTC2704CGW-14#TRPBF | SSOP-44 | C | $25.01 | Yes | ||
| LTC2704CGW-16#PBF | SSOP-44 | C | $43.86 | $29.95 | Yes | |
| LTC2704CGW-16#TRPBF | SSOP-44 | C | $30.01 | Yes | ||
| LTC2704IGW-12#PBF | SSOP-44 | I | $35.07 | $23.95 | Yes | |
| LTC2704IGW-12#TRPBF | SSOP-44 | I | $24.01 | Yes | ||
| LTC2704IGW-14#PBF | SSOP-44 | I | $43.86 | $29.95 | Yes | |
| LTC2704IGW-14#TRPBF | SSOP-44 | I | $30.01 | Yes | ||
| LTC2704IGW-16#PBF | SSOP-44 | I | $52.64 | $35.95 | Yes | |
| LTC2704IGW-16#TRPBF | SSOP-44 | I | $36.01 | 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 |
|---|---|---|---|
| DC752A-B | LTC2704 16 Bit Quad Vout DAC , (req DC590) | $200.00 | |
| 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 | |||
Designed for Automotive and Transportation Applications
AEC-Q100 data is available for these specific part numbers. Please contact your local sales representative for more information regarding reliability reports or to inquire about parts that are not included. For more information, view our Automotive and Transportation page
| Part Number | Package | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LTC2704IGW-12#PBF | SSOP-44 | I | $35.07 | $23.95 | Yes | |
| LTC2704IGW-12#TRPBF | SSOP-44 | I | $24.01 | Yes | ||
| LTC2704IGW-14#PBF | SSOP-44 | I | $43.86 | $29.95 | Yes | |
| LTC2704IGW-14#TRPBF | SSOP-44 | I | $30.01 | Yes | ||
| LTC2704IGW-16#PBF | SSOP-44 | I | $52.64 | $35.95 | Yes | |
| LTC2704IGW-16#TRPBF | SSOP-44 | I | $36.01 | Yes | ||
| Buy Now • Request Samples | ||||||
Applications
- Process Control and Industrial Automation
- Direct Digital Waveform Generation
- Software Controlled Gain Adjustment
- Automated Test Equipment
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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.
