LTC2751 - Current Output 12-/14-/16-Bit SoftSpan DACs with Parallel I/O
Datasheet 
DocumentationDatasheet
Reliability Data
Product Selector Card
Press Release
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Features
- Six Programmable 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
- Reference Input: ±15V
- Parallel Interface with Readback of All Registers
- Asynchronous CLR Pin Clears DAC Output to 0V in Any Output Range
- Power-On Reset to 0V
- 38-Pin 5mm x 7mm QFN Package
Typical Application
Description
The LTC2751 is a family of 12-, 14-, and 16-bit multiplying parallel-input, current-output DACs. They operate from a single 2.7V to 5.5V supply. All parts are guaranteed monotonic over temperature. The LTC2751A-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 pin strapped for operation in a single range.These parts use a bidirectional input/output parallel interface that allows read back of any on-chip register. A power-on circuit resets the DAC output to 0V when power is initially applied. A logic low on the CLR pin asynchronously clears the DAC to 0V in any output range.
The parts are specified over commercial and industrial temperature ranges.
5x7 QFN-38
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LTC2751ACUHF-16#PBF | QFN | 38 | C | $14.50 | $9.90 |
| LTC2751ACUHF-16#TRPBF | QFN | 38 | C | $9.96 | |
| LTC2751AIUHF-16#PBF | QFN | 38 | I | $17.40 | $11.88 |
| LTC2751AIUHF-16#TRPBF | QFN | 38 | I | $11.94 | |
| LTC2751BCUHF-16#PBF | QFN | 38 | C | $12.45 | $8.50 |
| LTC2751BCUHF-16#TRPBF | QFN | 38 | C | $8.56 | |
| LTC2751BIUHF-16#PBF | QFN | 38 | I | $14.94 | $10.20 |
| LTC2751BIUHF-16#TRPBF | QFN | 38 | I | $10.26 | |
| LTC2751CUHF-12#PBF | QFN | 38 | C | $7.25 | $4.95 |
| LTC2751CUHF-12#TRPBF | QFN | 38 | C | $5.01 | |
| LTC2751CUHF-14#PBF | QFN | 38 | C | $9.52 | $6.50 |
| LTC2751CUHF-14#TRPBF | QFN | 38 | C | $6.56 | |
| LTC2751IUHF-12#PBF | QFN | 38 | I | $8.70 | $5.94 |
| LTC2751IUHF-12#TRPBF | QFN | 38 | I | $6.00 | |
| LTC2751IUHF-14#PBF | QFN | 38 | I | $11.42 | $7.80 |
| LTC2751IUHF-14#TRPBF | QFN | 38 | I | $7.86 |
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 |
|---|---|---|---|
| DC1110A | LTC2751-16: 16-bit, Single, SoftSpan, 1LSB INL Iout DAC, req. DC590 | $50.00 |
Companion Boards
| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC590B | Isolated USB Serial Controller for Linear Technology QuikEval-Compatible Demo Boards | $50.00 |