Overview
The DAC8168IAPW is a 14-bit, octal-channel, ultra-low glitch, voltage output digital-to-analog converter (DAC) produced by Texas Instruments. This device is part of the DAC7568, DAC8168, and DAC8568 family, which are known for their low power consumption and high precision. The DAC8168IAPW features a 2.5V internal reference with a temperature drift of 2ppm/°C, making it suitable for applications requiring high accuracy and stability. It is packaged in a TSSOP-14 pin package, making it compact and suitable for a variety of applications, including portable instrumentation and data acquisition systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 14-bit | |
| Number of Channels | 8 | |
| Internal Reference Voltage | 2.5V | V |
| Internal Reference Temperature Drift | 2ppm/°C (typ), 5ppm/°C (max) | |
| Output Voltage Range | 0 to AVDD (up to 5V with internal reference) | V |
| Power Supply Range | 2.7V to 5.5V | V |
| Operating Temperature Range | -40°C to +125°C | °C |
| Glitch Energy | 0.1nV-s | nV-s |
| Serial Interface Clock Rate | Up to 50MHz | Hz |
| Power Consumption (Normal Mode, Internal Reference On) | Typically 1.25mA at 5V | mA |
| Power Consumption (Power-Down Mode) | Typically 0.18μA at 5V | μA |
Key Features
- Ultra-low glitch energy of 0.1nV-s, ensuring minimal code-to-code transient voltages.
- Internal 2.5V reference with 0.004% initial accuracy and 2ppm/°C temperature drift.
- Low power operation with a typical current consumption of 1.25mA at 5V, including internal reference current.
- Wide power-supply range from 2.7V to 5.5V.
- Monotonic over the entire temperature range, ensuring excellent linearity.
- Low-power serial interface with Schmitt-triggered inputs, compatible with SPI, QSPI, Microwire, and DSP interfaces.
- 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 less than 1μW.
Applications
- Portable instrumentation.
- Closed-loop servo-control and 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 DAC8168IAPW?
The DAC8168IAPW has a resolution of 14 bits. - How many channels does the DAC8168IAPW have?
The DAC8168IAPW has 8 channels. - What is the internal reference voltage of the DAC8168IAPW?
The internal reference voltage is 2.5V. - What is the temperature drift of the internal reference?
The temperature drift of the internal reference is typically 2ppm/°C and a maximum of 5ppm/°C. - What is the output voltage range of the DAC8168IAPW?
The output voltage range is from 0 to AVDD (up to 5V when using the internal reference). - What is the power supply range for the DAC8168IAPW?
The power supply range is from 2.7V to 5.5V. - What is the operating temperature range of the DAC8168IAPW?
The operating temperature range is from -40°C to +125°C. - What is the glitch energy of the DAC8168IAPW?
The glitch energy is 0.1nV-s. - What is the maximum clock rate for the serial interface?
The serial interface can operate at clock rates up to 50MHz. - How much power does the DAC8168IAPW consume in normal mode with the internal reference on?
The power consumption is typically 1.25mA at 5V, including the internal reference current.
