Overview
The DAC8822QBDBT is a 16-bit, dual, parallel input, multiplying digital-to-analog converter (DAC) produced by Texas Instruments. This device is designed to operate from a single 2.7V to 5.5V supply, making it versatile for various applications. The DAC8822 features high accuracy and low noise, with a differential nonlinearity (DNL) of ±0.5LSB and an integral nonlinearity (INL) of ±1LSB. It is packaged in a TSSOP-38 package, which is industry-standard and pin-compatible with the 14-bit DAC8805.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | - | - | - | 16 Bits |
| Relative Accuracy (INL) | - | - | ±1 LSB | - |
| Differential Nonlinearity (DNL) | - | - | ±0.5 LSB | - |
| Output Leakage Current (Data = 0000h, TA = +25°C) | - | - | 10 nA | - |
| Output Leakage Current (Data = 0000h, Full temperature range) | - | - | 20 nA | - |
| Full-Scale Gain Error (Unipolar, data = FFFFh) | - | - | ±1 ±4 mV | - |
| Full-Scale Temperature Coefficient | - | - | ±1 ±2 ppm/°C | - |
| Power Supply Voltage | 2.7V | - | 5.5V | - |
| Operating Temperature Range | -40°C | - | 125°C | - |
| Package Type | - | - | - | TSSOP-38 |
Key Features
- 16-bit resolution with ±0.5LSB DNL and ±1LSB INL
- Low noise: 12nV/√Hz
- Low power operation: IDD = 1µA per channel at 2.7V
- 2mA full-scale current with VREF = 10V
- Settling time: 0.5µs
- 4-quadrant multiplying reference inputs
- Reference bandwidth: 10MHz
- Reference input: ±18V
- Reference dynamics: -105 THD
- Midscale or zero scale reset
- Parallel interface for high-speed communications
- Industry-standard pin configuration and pin-compatible with the 14-bit DAC8805
Applications
- Automatic Test Equipment
- Instrumentation
- Digitally Controlled Calibration
- Industrial Control PLCs
Q & A
- What is the resolution of the DAC8822?
The DAC8822 has a 16-bit resolution.
- What is the differential nonlinearity (DNL) of the DAC8822?
The DNL of the DAC8822 is ±0.5LSB.
- What is the integral nonlinearity (INL) of the DAC8822?
The INL of the DAC8822 is ±1LSB.
- What is the operating voltage range of the DAC8822?
The DAC8822 operates from a single 2.7V to 5.5V supply.
- What is the settling time of the DAC8822?
The settling time of the DAC8822 is 0.5µs.
- What is the full-scale current of the DAC8822 with VREF = 10V?
The full-scale current is 2mA with VREF = 10V.
- Does the DAC8822 support midscale or zero scale reset?
- What is the package type of the DAC8822?
The DAC8822 is packaged in a TSSOP-38 package.
- What are some common applications of the DAC8822?
- Is the DAC8822 pin-compatible with other models?
