LTC2642
PRODUCTION16-/14-/12-Bit VOUT DACs in 3mm × 3mm DFN
- Part Models
- 32
- 1ku List Price
- Starting From $3.54
Part Details
- Tiny 3mm × 3mm 8-Pin DFN Package
- Maximum 16-Bit INL Error: ±1LSB over Temperature
- Low 120µA Supply Current
- Guaranteed Monotonic over Temperature
- Low 0.5nV•sec Glitch Impulse
- 2.7V to 5.5V Single Supply Operation
- Fast 1µs Settling Time to 16 Bits
- Unbuffered Voltage Output Directly Drives 60k Loads
- 50MHz SPI™/QSPI™/MICROWIRE™ Compatible Serial Interface
- Power-On Reset Clears DAC Output to Zero Scale(LTC2641) or Midscale (LTC2642)
- Schmitt-Trigger Inputs for Direct Optocoupler Interface
- Asynchronous CLR Pin
- 8-Lead MSOP, 3mm × 3mm DFN, and 8-Lead SO Packages (LTC2641)
- 10-Lead MSOP and 3mm × 3mm DFN Packages (LTC2642)
The LTC2641/LTC2642 are families of 16-, 14- and 12-bit unbuffered voltage output DACs. These DACs operate from a single 2.7V to 5.5V supply and are guaranteed monotonic over temperature. The LTC2641A-16/LTC2642A-16 provide 16-bit performance (±1LSB INL and ±1LSB DNL) over temperature. Unbuffered DAC outputs result in low supply current of 120µA and a low offset error of ±1LSB.
Both the LTC2641 and LTC2642 feature a reference input range of 2V to VDD. VOUT swings from 0V to VREF. For bipolar operation, the LTC2642 includes matched scaling resistors for use with an external precision op amp (such as the LT1678), generating a ±VREF output swing at RFB.
The LTC2641/LTC2642 use a simple SPI/MICROWIRE compatible 3-wire serial interface which can be operated at clock rates up to 50MHz and can interface directly with optocouplers for applications requiring isolation. A power-on reset circuit clears the LTC2641’s DAC output to zero scale and the LTC2642’s DAC output to midscale when power is initially applied. A logic low on the CLR pin asynchronously clears the DAC to zero scale (LTC2641) or midscale (LTC2642). These DACs are all specified over the commercial and industrial ranges.
Applications
- High Resolution Offset and Gain Adjustment
- Process Control and Industrial Automation
- Automatic Test Equipment
- Data Aquisition Systems
Documentation
Data Sheet 1
Reliability Data 1
User Guide 1
Product Selector Card 4
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 |
|---|---|---|---|
| LTC2642ACDD-16#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2642ACDD-16#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2642ACMS-16#PBF | 10-Lead MSOP | ||
| LTC2642ACMS-16#TRPBF | 10-Lead MSOP | ||
| LTC2642AIDD-16#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2642AIDD-16#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2642AIMS-16#PBF | 10-Lead MSOP | ||
| LTC2642AIMS-16#TRPBF | 10-Lead MSOP | ||
| LTC2642CDD-12#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2642CDD-12#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2642CDD-14#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2642CDD-14#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2642CDD-16#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2642CDD-16#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2642CMS-12#PBF | 10-Lead MSOP | ||
| LTC2642CMS-12#TRPBF | 10-Lead MSOP | ||
| LTC2642CMS-14#PBF | 10-Lead MSOP | ||
| LTC2642CMS-14#TRPBF | 10-Lead MSOP | ||
| LTC2642CMS-16#PBF | 10-Lead MSOP | ||
| LTC2642CMS-16#TRPBF | 10-Lead MSOP | ||
| LTC2642IDD-12#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2642IDD-12#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2642IDD-14#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2642IDD-14#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2642IDD-16#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2642IDD-16#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2642IMS-12#PBF | 10-Lead MSOP | ||
| LTC2642IMS-12#TRPBF | 10-Lead MSOP | ||
| LTC2642IMS-14#PBF | 10-Lead MSOP | ||
| LTC2642IMS-14#TRPBF | 10-Lead MSOP | ||
| LTC2642IMS-16#PBF | 10-Lead MSOP | ||
| LTC2642IMS-16#TRPBF | 10-Lead MSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 30, 2020 - 20_0244 Notification of Wafer Fab Location Change for 0.6µm CMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan) |
||
| LTC2642ACDD-16#PBF | PRODUCTION | |
| LTC2642ACDD-16#TRPBF | PRODUCTION | |
| LTC2642ACMS-16#PBF | PRODUCTION | |
| LTC2642ACMS-16#TRPBF | PRODUCTION | |
| LTC2642AIDD-16#PBF | PRODUCTION | |
| LTC2642AIDD-16#TRPBF | PRODUCTION | |
| LTC2642AIMS-16#PBF | PRODUCTION | |
| LTC2642AIMS-16#TRPBF | PRODUCTION | |
| LTC2642CDD-12#PBF | PRODUCTION | |
| LTC2642CDD-12#TRPBF | PRODUCTION | |
| LTC2642CDD-16#PBF | PRODUCTION | |
| LTC2642CDD-16#TRPBF | PRODUCTION | |
| LTC2642CMS-12#PBF | PRODUCTION | |
| LTC2642CMS-12#TRPBF | PRODUCTION | |
| LTC2642CMS-16#PBF | PRODUCTION | |
| LTC2642CMS-16#TRPBF | PRODUCTION | |
| LTC2642IDD-12#PBF | PRODUCTION | |
| LTC2642IDD-12#TRPBF | PRODUCTION | |
| LTC2642IDD-16#PBF | PRODUCTION | |
| LTC2642IDD-16#TRPBF | PRODUCTION | |
| LTC2642IMS-12#PBF | PRODUCTION | |
| LTC2642IMS-12#TRPBF | PRODUCTION | |
| LTC2642IMS-16#PBF | PRODUCTION | |
| LTC2642IMS-16#TRPBF | PRODUCTION | |
|
Feb 4, 2020 - 20_0130 Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC |
||
| LTC2642ACMS-16#PBF | PRODUCTION | |
| LTC2642ACMS-16#TRPBF | PRODUCTION | |
| LTC2642AIMS-16#PBF | PRODUCTION | |
| LTC2642AIMS-16#TRPBF | PRODUCTION | |
| LTC2642CMS-12#PBF | PRODUCTION | |
| LTC2642CMS-12#TRPBF | PRODUCTION | |
| LTC2642CMS-14#PBF | PRODUCTION | |
| LTC2642CMS-14#TRPBF | PRODUCTION | |
| LTC2642CMS-16#PBF | PRODUCTION | |
| LTC2642CMS-16#TRPBF | PRODUCTION | |
| LTC2642IMS-12#PBF | PRODUCTION | |
| LTC2642IMS-12#TRPBF | PRODUCTION | |
| LTC2642IMS-14#PBF | PRODUCTION | |
| LTC2642IMS-14#TRPBF | PRODUCTION | |
| LTC2642IMS-16#PBF | PRODUCTION | |
| LTC2642IMS-16#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| High Voltage Op Amps ≥12V 1 | ||
| LT1678 | PRODUCTION | Dual/Quad Low Noise, Rail-to-Rail, Precision Op Amps |
| I²C Isolators 1 | ||
| LTM2883 | PRODUCTION | SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power |
| Positive Linear Regulators (LDO) 1 | ||
| LT3040 | RECOMMENDED FOR NEW DESIGNS | 20V, 200mA, Ultralow Noise, Ultrahigh PSRR Precision DAC/Reference Buffer |
| Series Voltage References 1 | ||
| LT1019 | PRODUCTION | Precision Reference |
| SPI Isolators 1 | ||
| LTM2893 | PRODUCTION | 100MHz Isolated ADC Serial Interface |
Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LTC2642-12
- LTC2642-14
- LTC2642-16
Linduino 3
IBIS Model 1
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.
Linduino code repository on GitHub and instructions on how to use the code.
Evaluation Kits
LTC2642A-16 (LTC2641A-16) 16-bit ±5V Unbuffered VOUT DAC (req DC590B)