Overview
The DAC8168ICPWR is a 14-bit, octal-channel, voltage-output digital-to-analog converter (DAC) produced by Texas Instruments. This device is part of the DAC8168 family and is known for its ultralow glitch energy and high accuracy. It features an internal 2.5V reference with high temperature stability and a versatile 3-wire serial interface compatible with standard SPI, QSPI, Microwire, and DSP interfaces. The DAC8168ICPWR is suitable for a wide range of applications, including portable instrumentation, closed-loop servo-control, and data acquisition systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 14 bits | |
| Relative Accuracy | ±1 LSB INL | |
| Differential Nonlinearity | ±0.5 LSB | |
| Internal Reference Voltage | 2.5 V | |
| Internal Reference Accuracy | 0.004% (typ) | |
| Reference Temperature Drift | 2 ppm/°C (typ), 5 ppm/°C (max) | |
| Output Voltage Range | 0 to 2.5 V or 0 to 5 V | |
| Power Supply Range | 2.7 V to 5.5 V | |
| Power Consumption (normal mode) | 1.25 mA at 5 V (including internal reference) | |
| Power Consumption (power-down mode) | < 1 μW | |
| Operating Temperature Range | -40°C to +125°C | |
| Package Type | TSSOP-14 or TSSOP-16 |
Key Features
- Ultralow glitch energy: 0.1 nV-s
- Internal 2.5V reference with 0.004% initial accuracy and 2 ppm/°C temperature drift
- Low power operation: 1.25 mA at 5 V including internal reference current
- Wide power-supply range: 2.7 V to 5.5 V
- Monotonic over entire temperature range
- Low-power serial interface with Schmitt-triggered inputs up to 50 MHz
- On-chip output buffer amplifier with rail-to-rail operation
- Power-on reset to zero scale or midscale
- Power-down feature reducing current consumption to typically 0.18 μA at 5 V
Applications
- Portable instrumentation
- Closed-loop servo-control/process control
- Data acquisition systems
- Programmable attenuation, digital gain, and offset adjustment
- Programmable voltage and current sources
Q & A
- What is the resolution of the DAC8168ICPWR?
The DAC8168ICPWR has a resolution of 14 bits. - What is the relative accuracy of the DAC8168ICPWR?
The relative accuracy is ±1 LSB INL. - What is the internal reference voltage of the DAC8168ICPWR?
The internal reference voltage is 2.5 V. - What is the temperature drift of the internal reference?
The temperature drift is 2 ppm/°C (typ) and 5 ppm/°C (max). - What is the output voltage range of the DAC8168ICPWR?
The output voltage range is 0 to 2.5 V or 0 to 5 V. - What is the power supply range for the DAC8168ICPWR?
The power supply range is 2.7 V to 5.5 V. - How much power does the DAC8168ICPWR consume in normal mode?
The power consumption is typically 1.25 mA at 5 V including the internal reference. - What is the operating temperature range of the DAC8168ICPWR?
The operating temperature range is -40°C to +125°C. - What package types are available for the DAC8168ICPWR?
The DAC8168ICPWR is available in TSSOP-14 and TSSOP-16 packages. - What is the glitch energy of the DAC8168ICPWR?
The glitch energy is 0.1 nV-s.
