16-bit, octal-channel, ultra-low glitch, voltage output DAC with 2.5V, 2ppm/°C internal reference
Product details
Parameters
Package | Pins | Size
Features
- Relative Accuracy:
- DAC7568 (12-Bit): 0.3 LSB INL
- DAC8168 (14-Bit): 1 LSB INL
- DAC8568 (16-Bit): 4 LSB INL
- Glitch Energy: 0.1nV-s
- Internal Reference:
- 2.5V Reference Voltage (disabled by default)
- 0.004% Initial Accuracy (typ)
- 2ppm/°C Temperature Drift (typ)
- 5ppm/°C Temperature Drift (max)
- 20mA Sink/Source Capability
- Power-On Reset to Zero Scale or Midscale
- Ultralow Power Operation: 1.25mA at 5V Including Internal Reference Current
- Wide Power-Supply Range: +2.7V to +5.5V
- Monotonic Over Entire Temperature Range
- Low-Power Serial Interface with Schmitt-Triggered Inputs: Up to 50MHz
- On-Chip Output Buffer Amplifier with Rail-to-Rail Operation
- Temperature Range: –40°C to +125°C
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Description
The DAC7568, DAC8168, and DAC8568 are low-power, voltage-output, eight-channel, 12-, 14-, and 16-bit digital-to-analog converters (DACs), respectively. These devices include a 2.5V, 2ppm/°C internal reference (disabled by default), giving a full-scale output voltage range of 2.5V or 5V. The internal reference has an initial accuracy of 0.004% and can source up to 20mA at the VREFIN/VREFOUT pin. These devices are monotonic, providing excellent linearity and minimizing undesired code-to-code transient voltages (glitch). They use a versatile 3-wire serial interface that operates at clock rates up to 50MHz. The interface is compatible with standard SPI™, QSPI™, Microwire™, and digital signal processor (DSP) interfaces.
The DAC7568, DAC8168, and DAC8568 incorporate a power-on-reset circuit that ensures the DAC output powers up at either zero scale or midscale until a valid code is written to the device. These devices contain a power-down feature, accessed over the serial interface, that reduces current consumption to typically 0.18µA at 5V. Power consumption (including internal reference) is typically 2.9mW at 3V, reducing to less than 1µW in power-down mode. The low power consumption, internal reference, and small footprint make these devices ideal for portable, battery-operated equipment.
The DAC7568, DAC8168, and DAC8568 are drop-in and function-compatible with each other, and are available in TSSOP-16 and TSSOP-14 packages.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | DAC7568, DAC8168, DAC8568 12-/14-/16-Bit, Octal-Channel, Ultralow Glitch, Voltage Output, Digital-to-Analog Converters with 2.5-V 2-ppm/°C Internal Reference datasheet (Rev. F) | Apr. 06, 2018 |
User guide | BOOST-DAC8568 Getting Started Guide | Jun. 07, 2016 | |
Technical articles | DAC Essentials: Understanding your DAC's speed limit | Aug. 26, 2013 | |
Technical articles | DAC Essentials: String theory | May 01, 2013 | |
User guide | DACxx68EVM Users Guide | Nov. 19, 2009 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- DAC8568 (16-Bit): 4 LSB INL
- 2.5V Internal Ref
- 20mA Output Sink/Source Capability
- On-Chip Output Buffer Amplifier with Rail-to-Rail Operation
- Low-Power Serial Interface with Schmitt- Triggered Inputs: Up to 50MHz
Description
The DACxx68 EVM is an evaluation module designed for the prototyping and evaluation of the DAC7568, DAC8168 and DAC8568 digital to analog converters (DAC). These 12 to 16-bit, eight channel string DACs operate with a high speed serial clock (up to 50MHz) and offer excellent performance with ultra (...)
Features
- Flexible power sourcing with a wide power supply range
- On-chip output buffer for Rail to Rail operation
- Compatible with the 5-6K Interface board, DSK Starter Kits and HPA-MCU Interface Board
Software development
Features
- Modular design allows additional EVMs to be supported
- Graphical user interface provides easy setup to send signals to a DAC
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Features
- Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
- Noise calculations
- Common unit translation
- Solves common amplifier circuit design problems
- Gain selections using standard resistors
- Filter configurations
- Total noise for common amplifier configurations
- (...)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
TSSOP (PW) | 16 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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