AD5045
PRODUCTIONFully Accurate 14-Bit VOUT nanoDAC® SPI Interface 4.5 V to 5.5 V in a TSSOP
- Part Models
- 1
- 1ku List Price
- Starting From $8.52
Part Details
- Low power dual 12-/14-/16-bit DAC, ±1 LSB INL
- Individual voltage reference pins
- Rail-to-rail operation
- 4.5 V to 5.5 V power supply
- Power-on reset to zero scale or midscale
- Power down to 400 nA at 5 V
- 3 power-down functions
- Per channel power-down
- Low glitch upon power-up
- Hardware power-down lockout capability
- Hardware LDAC with software LDAC override function
- CLR function to programmable code
- SDO daisy-chaining option
- 14-lead TSSOP
The AD5025 / AD5045 / AD5065 are low power, dual 12-/14-/16-bit buffered voltage output nanoDAC® DACs offering relative accuracy specifications of ±1 LSB INL with individual reference pins, and can operate from a single 4.5 V to 5.5 V supply. The AD5025 / AD5045 / AD5065 also offer a differential accuracy specification of ±1 LSB. The parts use a versatile 3-wire, low power Schmitt trigger serial interface that operates at clock rates up to 50 MHz and is compatible with standard SPI®, QSPI™, MICROWIRE™, and DSP interface standards. The reference for the AD5025 / AD5045 / AD5065 are supplied from an external pin and a reference buffer is provided on chip. The AD5025 / AD5045 / AD5065 incorporate a power-on reset circuit that ensures the DAC output powers up zero scale or midscale and remains there until a valid write takes place to the device. The AD5025 / AD5045 / AD5065 contain a power-down feature that reduces the current consumption of the device to typically 400 nA at 5 V and provides software selectable output loads while in power-down mode. The parts are put into power-down mode over the serial interface. Total unadjusted error for the parts is <2.5 mV. The parts exhibit very low glitch on power-up. The outputs of all DACs can be updated simultaneously using the LDAC function, with the added functionality of user-selectable DAC channels to simultaneously update. There is also an asynchronous CLR that clears all DACs to a software-selectable code—0 V, midscale, or full scale. The parts also feature a power-down lockout pin, PDL, which can be used to prevent the DAC from entering power-down under any circumstances over the serial interface.
Product Highlights
- Dual channel available in a 14-lead TSSOP package with individual voltage reference pins.
- 12-/14-/16-bit accurate, ±1 LSB INL.
- Low glitch on power-up.
- High speed serial interface with clock speeds up to 50 MHz.
- Three power-down modes available to the user.
- Reset to known output voltage (zero scale or midscale).
- Power-down lockout capability.
Applications
- Process controls
- Data acquisition systems
- Portable battery-powered instruments
- Digital gain and offset adjustment
- Programmable voltage and current sources
- Programmable attenuators
Documentation
Solutions Bulletin & Brochure 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 |
|---|---|---|---|
| AD5045BRUZ | 14-Lead TSSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 11, 2011 - 10_0005 Halogen Free Material Change for TSSOP Products Assembled at Amkor |
||
| AD5045BRUZ | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Low Input Bias Current Op Amps (≤100 pA) 3 | ||
| AD820 | PRODUCTION | Single-Supply, Rail-to-Rail, Low Power FET-Input Op Amp |
| AD8638 | PRODUCTION | 16 V Auto-Zero, Rail-to-Rail Output Operational Amplifier |
| AD8639 | PRODUCTION | 16V Dual Auto-Zero, Rail-to-Rail Output, Precision Amplifier |
| Low Power Op Amps (≤ 1mA/amp) 1 | ||
| OP295 | PRODUCTION | Rail-to-Rail Dual Op Amp |
| Series Voltage References 6 | ||
| REF195 | PRODUCTION | 5.0V Precision Micropower, Low Dropout, Low Voltage Reference |
| ADR4550 | PRODUCTION | Ultra-Low-Noise, High-Accuracy 5.0V Voltage Reference |
| ADR435 | PRODUCTION | Ultralow Noise XFET® Voltage References with Current Sink and Source Capability |
| REF192 | PRODUCTION | 2.5V Precision Micropower, Low Dropout, Low Voltage Reference |
| ADR3425 | PRODUCTION | Micro-Power, High-Accuracy 2.5V Voltage Reference |
| ADR4525 | PRODUCTION | Ultra-Low-Noise, High-Accuracy 2.5V Voltage Reference |
| Standard Digital Isolators 2 | ||
| ADuM1300 | PRODUCTION | Triple-Channel Digital Isolator |
| ADUM1310 | PRODUCTION | Triple-Channel Digital Isolators |
Tools & Simulations
Precision DAC Error Budget Tool
The Precision DAC Error Budget Tool is a web application that calculates the DC Accuracy of precision DAC signal chains. It shows how the static errors accumulate throughout your signal chain to quickly evaluate the design tradeoffs. Calculations include the DC errors introduced by Voltage References, Operation Amplifiers and Precision DACs.
Open Tool