Overview
The DAC8814ICDBR is a quad, 16-bit, current-output digital-to-analog converter (DAC) produced by Texas Instruments. This device is part of the DAC8814 family and is specifically packaged in a 28-lead SSOP package. It features a serial input interface compatible with the SPI protocol and is designed for applications requiring high precision and simultaneous multichannel output updates.
The DAC8814ICDBR includes internal power-on reset, which forces the output voltage to zero at system turn-on, and an MSB pin that allows system reset assertion to set registers to zero or half-scale code. The device operates over a wide power supply range of 2.7 V to 5.5 V and supports operating temperatures from -40°C to +85°C.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Resolution | - | - | - | 16 Bits | |
| Relative Accuracy | INL | - | - | ±1 LSB | |
| Differential Nonlinearity | DNL | - | - | ±1 LSB | |
| Power Supply Range | VDD | 2.7 | - | 5.5 | V |
| Operating Temperature Range | TA | -40 | - | +85 | °C |
| Clock Input Frequency | fCLK | - | - | 50 MHz | |
| Output Voltage Settling Time | ts | - | - | 0.3 µs | |
| Package Type | - | - | - | SSOP-28 |
Key Features
- Quad 16-Bit DACs: Each DAC is a 16-bit current-output digital-to-analog converter.
- Serial Input Interface: SPI-compatible 3-wire serial interface for data input.
- Simultaneous Multichannel Update: LDAC strobe input allows simultaneous update of all DAC outputs.
- Internal Power-On Reset: Forces output voltage to zero at system turn-on.
- Configurable Reset: MSB pin allows system reset assertion to set registers to zero or half-scale code.
- Wide Power Supply Range: Operates from 2.7 V to 5.5 V.
- High Accuracy: Relative accuracy and differential nonlinearity of ±1 LSB.
- External Amplifier Compatibility: Each DAC has a matching feedback resistor for use with an external I-to-V converter amplifier.
Applications
- Automatic Test Equipment: Suitable for precision measurement and control in test equipment.
- Instrumentation: Used in various instrumentation applications requiring high precision and accuracy.
- Digitally-Controlled Calibration: Ideal for systems that require digital calibration and adjustment.
- Industrial Control Systems: Can be used in industrial control systems for precise output control.
- Medical Devices: Suitable for medical devices that require high precision and reliability.
Q & A
- What is the resolution of the DAC8814ICDBR?
The DAC8814ICDBR has a resolution of 16 bits.
- What is the relative accuracy of the DAC8814ICDBR?
The relative accuracy is ±1 LSB.
- What is the operating temperature range of the DAC8814ICDBR?
The operating temperature range is from -40°C to +85°C.
- What type of serial interface does the DAC8814ICDBR use?
The DAC8814ICDBR uses an SPI-compatible 3-wire serial interface.
- How does the LDAC strobe input function?
The LDAC strobe input allows for the simultaneous update of all DAC outputs.
- What is the purpose of the MSB pin?
The MSB pin allows system reset assertion to set registers to zero or half-scale code.
- What is the power supply range for the DAC8814ICDBR?
The power supply range is from 2.7 V to 5.5 V.
- How does the internal power-on reset function?
The internal power-on reset forces the output voltage to zero at system turn-on.
- What type of package is the DAC8814ICDBR available in?
The DAC8814ICDBR is available in a 28-lead SSOP package.
- Can the DAC8814ICDBR be used with external amplifiers?
Yes, each DAC has a matching feedback resistor for use with an external I-to-V converter amplifier.
