LTC1821 - 16-Bit, Ultra Precise, Fast Settling VOUT DAC
Features
- 2µs Settling to 0.0015% for 10V Step
- 1LSB Max DNL and INL Over Industrial Temperature Range
- On-Chip 4-Quadrant Resistors Allow Precise 0V to 10V, 0V to –10V or ±10V Outputs
- Low Glitch Impulse: 2nV•s
- 36-Lead SSOP Package
- Power-On Reset
- Asynchronous Clear Pin LTC1821: Reset to Zero Scale LTC1821-1: Reset to Midscale
- Low Noise: 13nV/ Rt.Hz
Typical Application
Description
The LTC1821 is a parallel input 16-bit multiplying voltage output DAC that operates from analog supply voltages of ±5V up to ±15V. INL and DNL are accurate to 1LSB over the industrial temperature range in both unipolar 0V to 10V and bipolar ±10V modes. Precise 16-bit bipolar ±10V outputs are achieved with on-chip 4-quadrant multiplication resistors. The LTC1821 is available in a 36-lead SSOP package and is specified over the industrial temperature range.The device includes an internal deglitcher circuit that reduces the glitch impulse to less than 2nV•s (typ). The LTC1821 settles to 1LBS in 2µs with a full-scale 10V step. The combination of fast, precise settling and ultra low glitch make the LTC1821 ideal for precision industrial control applications.
The asynchronous CLR pin resets the LTC1821 to zero scale and resets the LTC1821-1 to midscale.
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 |
|---|---|---|---|---|---|
| LTC1821-1ACGW#PBF | SSOP-36 | GW | C | 05-08-1642 (GW36) | Yes |
| LTC1821-1ACGW#TRPBF | SSOP-36 | GW | C | 05-08-1642 (GW36) | Yes |
| LTC1821-1AIGW#PBF | SSOP-36 | GW | I | 05-08-1642 (GW36) | Yes |
| LTC1821-1AIGW#TRPBF | SSOP-36 | GW | I | 05-08-1642 (GW36) | Yes |
| LTC1821-1BCGW#PBF | SSOP-36 | GW | C | 05-08-1642 (GW36) | Yes |
| LTC1821-1BCGW#TRPBF | SSOP-36 | GW | C | 05-08-1642 (GW36) | Yes |
| LTC1821-1BIGW#PBF | SSOP-36 | GW | I | 05-08-1642 (GW36) | Yes |
| LTC1821-1BIGW#TRPBF | SSOP-36 | GW | I | 05-08-1642 (GW36) | Yes |
| LTC1821ACGW#PBF | SSOP-36 | GW | C | 05-08-1642 (GW36) | Yes |
| LTC1821ACGW#TRPBF | SSOP-36 | GW | C | 05-08-1642 (GW36) | Yes |
| LTC1821AIGW#PBF | SSOP-36 | GW | I | 05-08-1642 (GW36) | Yes |
| LTC1821AIGW#TRPBF | SSOP-36 | GW | I | 05-08-1642 (GW36) | Yes |
| LTC1821BCGW#PBF | SSOP-36 | GW | C | 05-08-1642 (GW36) | Yes |
| LTC1821BCGW#TRPBF | SSOP-36 | GW | C | 05-08-1642 (GW36) | Yes |
| LTC1821BIGW#PBF | SSOP-36 | GW | I | 05-08-1642 (GW36) | Yes |
| LTC1821BIGW#TRPBF | SSOP-36 | GW | I | 05-08-1642 (GW36) | 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 | |
|---|---|---|---|---|---|---|
| LTC1821-1ACGW#PBF | SSOP-36 | C | $58.10 | $41.00 | Yes | |
| LTC1821-1ACGW#TRPBF | SSOP-36 | C | $41.10 | Yes | ||
| LTC1821-1AIGW#PBF | SSOP-36 | I | $63.75 | $45.00 | Yes | |
| LTC1821-1AIGW#TRPBF | SSOP-36 | I | $45.10 | Yes | ||
| LTC1821-1BCGW#PBF | SSOP-36 | C | $42.40 | $29.95 | Yes | |
| LTC1821-1BCGW#TRPBF | SSOP-36 | C | $30.05 | Yes | ||
| LTC1821-1BIGW#PBF | SSOP-36 | I | $46.65 | $32.95 | Yes | |
| LTC1821-1BIGW#TRPBF | SSOP-36 | I | $33.05 | Yes | ||
| LTC1821ACGW#PBF | SSOP-36 | C | $58.10 | $41.00 | Yes | |
| LTC1821ACGW#TRPBF | SSOP-36 | C | $41.10 | Yes | ||
| LTC1821AIGW#PBF | SSOP-36 | I | $63.75 | $45.00 | Yes | |
| LTC1821AIGW#TRPBF | SSOP-36 | I | $45.10 | Yes | ||
| LTC1821BCGW#PBF | SSOP-36 | C | $42.40 | $29.95 | Yes | |
| LTC1821BCGW#TRPBF | SSOP-36 | C | $30.05 | Yes | ||
| LTC1821BIGW#PBF | SSOP-36 | I | $46.65 | $32.95 | Yes | |
| LTC1821BIGW#TRPBF | SSOP-36 | I | $33.05 | 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.Click here to view our complete list of demo boards
Applications
- Precision Instrumentation
- Process Control and Industrial Automation
- Direct Digital Waveform Generation
- Software-Controlled Gain Adjustment
- Automatic Test Equipment
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