Overview
The DAC7614EB/1K, produced by Texas Instruments, is a quad, serial input, 12-bit, voltage output digital-to-analog converter (DAC). It is designed to provide guaranteed 12-bit monotonic performance over a wide temperature range of –40°C to +85°C. This device features a low power consumption of 20mW and supports both unipolar and bipolar operation. The DAC7614EB/1K is available in various packages, including 16-pin plastic DIP, 16-lead SOIC, and 20-lead SSOP, making it versatile for different application needs.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Linearity Error | VSS = 0V or –5V | ±2 | ±1 | LSB | |
| Linearity Matching | VSS = 0V or –5V | ±2 | ±1 | LSB | |
| Differential Linearity Error | VSS = 0V or –5V | ±1 | ±1 | LSB | |
| Monotonicity | 12 | 6 | Bits | ||
| Zero-Scale Error | Code = 000H | ±4 | 6 | LSB | |
| Zero-Scale Drift | 2 | 5 | 6 | ppm/°C | |
| Full-Scale Error | Code = FFFH | 4 | LSB | ||
| Settling Time | 10µs | ||||
| Operating Temperature Range | –40°C | +85°C | °C | ||
| Power Supply | +5V | ±5V | V |
Key Features
- Low Power Consumption: 20mW
- Unipolar or Bipolar Operation: Flexible operation modes
- Settling Time: 10µs to 0.012%
- 12-Bit Linearity and Monotonicity: Guaranteed over –40°C to +85°C temperature range
- User Selectable Reset: To mid-scale (800H) or zero-scale (000H) via the RESETSEL pin
- Second-Source for DAC8420: Compatibility with another model
- Small 20-Lead SSOP Package: Compact design for space-efficient applications
Applications
- ATE Pin Electronics: Automated test equipment
- Process Control: Industrial control systems
- Closed-Loop Servo-Control: Precision control systems
- Motor Control: Industrial and automotive applications
- Data Acquisition Systems: Measurement and monitoring systems
Q & A
- What is the resolution of the DAC7614EB/1K?
The DAC7614EB/1K has a 12-bit resolution.
- What is the operating temperature range of the DAC7614EB/1K?
The operating temperature range is –40°C to +85°C.
- Can the DAC7614EB/1K operate in both unipolar and bipolar modes?
- What is the settling time of the DAC7614EB/1K?
The settling time is 10µs to 0.012%.
- How does the reset function work on the DAC7614EB/1K?
The reset function sets all DAC registers to either mid-scale (800H) or zero-scale (000H), selectable via the RESETSEL pin.
- What are the power supply options for the DAC7614EB/1K?
The device can be powered from a single +5V supply or from dual +5V and –5V supplies.
- What are the typical applications of the DAC7614EB/1K?
Typical applications include ATE pin electronics, process control, closed-loop servo-control, motor control, and data acquisition systems.
- What is the package type and pin count of the DAC7614EB/1K?
The device is available in 16-pin plastic DIP, 16-lead SOIC, and 20-lead SSOP packages.
- How does the DAC7614EB/1K handle reference voltage inputs?
The reference inputs, VREFL and VREFH, can be any voltage between VSS + 2.25V and VDD – 2.25V, provided that VREFH is at least 1.25V greater than VREFL.
- What is the significance of the LOADDACS pin on the DAC7614EB/1K?
The LOADDACS pin controls when the selected DAC register becomes transparent (LOW) or latched (HIGH).
