LTC1427-50
PRODUCTIONMicropower, 10-Bit Current Output DAC with SMBus Serial Interface
- Part Models
- 2
- 1ku List Price
- Starting From $4.34
Part Details
- Precision 50µA, ±1.5% Initial Full-Scale Output Current, ±2.5% Over Temperature
- Wide Output Voltage DC Compliance: –15V to (VCC – 1.3V)
- Wide Supply Range: 2.7V ≤ VCC ≤ 5.5V
- Supply Current in Shutdown: 10µA Typ
- Low Supply Current: 115µA Typ
- Available in 8-Pin SO
- SMBus Serial Interface
- Four Selectable SMBus Addresses
- DAC Powers Up at Zero or Midscale
- DAC Contents Are Retained in Shutdown
The LTC1427-50 is a micropower, 10-Bit current output DAC with an output range of 0µA to 50µA. The DAC output is guaranteed monotonic and DNL is less than 0.9LSB under all operating conditions. Full-scale accuracy is ±2.5% over the commercial temperature range. The LTC1427-50 operates with power supply voltages from 2.7V to 5.5V and the DAC current source output can be biased from (VCC – 1.3V) to –15V.
The LTC1427-50 communicates with external circuitry by using the SMBus serial interface. It acts as an SMBus slave device using one of four selectable SMBus addresses set by the two address pins AD0 and AD1.
On power-up, the DAC output assumes midrange or zero scale, depending on the logic state of the two address pins. The LTC1427-50 can be shut down through the SHDN pin or by setting the SHDN bit = 1 in the SMBus command byte. Digital data for the DAC output is retained internally and the supply current drops to 10µA typically when in shutdown.
The LTC1427-50 is available in an 8-pin SO package.
Applications
- LCD Contrast and Backlight Brightness Control
- Power Supply Voltage Adjustment
- Battery Charger Voltage/Current Adjustment
- GaAs FET Bias Adjustment
- Trimmer Pot Elimination
Documentation
Data Sheet 1
Reliability Data 1
Technical Articles 1
Product Selector Card 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC1427CS8-50#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1427CS8-50#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 24, 2024 - 24_0246 Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package |
||
| LTC1427CS8-50#PBF | PRODUCTION | |
| LTC1427CS8-50#TRPBF | PRODUCTION | |
|
Oct 12, 2022 - 22_0255 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2) |
||
| LTC1427CS8-50#PBF | PRODUCTION | |
| LTC1427CS8-50#TRPBF | PRODUCTION | |
|
Jun 16, 2021 - 21_0026 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM |
||
| LTC1427CS8-50#PBF | PRODUCTION | |
| LTC1427CS8-50#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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