Overview
The DAC8162SDGSR is a 14-bit, dual-channel, low-power, ultra-low glitch, buffered voltage-output digital-to-analog converter (DAC) produced by Texas Instruments. This device is part of the DACxx6x family, which includes 12-bit, 14-bit, and 16-bit variants. The DAC8162SDGSR features a 2.5-V internal reference with a temperature drift of 4 ppm/°C, making it suitable for applications requiring high precision and stability.
The device operates over a wide power-supply range of 2.7 V to 5.5 V and consumes low power, typically 4 mW at 5 V, including the internal reference current. It is available in a 10-pin VSSOP (DGS) package, making it ideal for space-constrained and battery-operated systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 14 Bits | |
| Relative Accuracy | ±1 to ±3 LSB | |
| Differential Nonlinearity | ±0.1 to ±0.5 LSB | |
| Internal Reference Voltage | 2.5 V | |
| Internal Reference Temperature Drift | 4 ppm/°C (typ), 10 ppm/°C (max) | |
| Power Supply Range | 2.7 V to 5.5 V | |
| Power Consumption (typical) | 4 mW at 5 V (including internal reference) | |
| Power-Down Current | 550 nA at 5 V | |
| Operating Temperature Range | –40°C to 125°C | |
| Package Type | 10-pin VSSOP (DGS) | |
| Serial Interface Clock Rate | Up to 50 MHz |
Key Features
- Low power consumption: Typically 4 mW at 5 V, including internal reference current.
- Internal 2.5-V reference with ±5 mV initial accuracy and 4 ppm/°C temperature drift.
- Ultra-low glitch impulse: 0.1 nV-s for 1-LSB change around major carry.
- Monotonicity ensures excellent linearity and minimizes code-to-code transient voltages.
- Wide power-supply range: 2.7 V to 5.5 V.
- Power-on reset to zero scale (DACxx62) or mid-scale (DACxx63).
- Power-down feature reducing current consumption to typically 550 nA at 5 V.
- Output buffer with rail-to-rail operation.
- LDAC and CLR functions for asynchronous and synchronous updates.
- 50-MHz SPI interface with Schmitt-triggered inputs, compatible with standard SPI, QSPI, Microwire, and DSP interfaces.
Applications
- Portable instrumentation.
- PLC analog output modules.
- Closed-loop servo control.
- Voltage-controlled oscillator tuning.
- Data acquisition systems.
- Programmable gain and offset adjustment.
Q & A
- What is the resolution of the DAC8162SDGSR?
The DAC8162SDGSR has a resolution of 14 bits.
- What is the internal reference voltage of the DAC8162SDGSR?
The internal reference voltage is 2.5 V with a temperature drift of 4 ppm/°C.
- What is the power consumption of the DAC8162SDGSR?
The typical power consumption is 4 mW at 5 V, including the internal reference current.
- What is the operating temperature range of the DAC8162SDGSR?
The operating temperature range is –40°C to 125°C.
- What type of package is the DAC8162SDGSR available in?
The DAC8162SDGSR is available in a 10-pin VSSOP (DGS) package.
- What is the maximum clock rate of the serial interface?
The serial interface can operate at clock rates up to 50 MHz.
- Does the DAC8162SDGSR have a power-down feature?
- What is the glitch impulse of the DAC8162SDGSR?
The glitch impulse is 0.1 nV-s for a 1-LSB change around major carry.
- Is the DAC8162SDGSR monotonic?
- What are some common applications of the DAC8162SDGSR?
