Overview
The DAC7614P is a quad, serial input, 12-bit, voltage output digital-to-analog converter (DAC) produced by Burr-Brown. It is designed to provide guaranteed 12-bit monotonic performance over a temperature range of –40°C to +85°C. The device features a classic R-2R ladder configuration followed by an operational amplifier that serves as a buffer. Each of the four DACs has its own R-2R ladder network and output op-amp, but all share the reference voltage inputs. The DAC7614P can be powered from either a single +5V supply or dual ±5V supplies, and it includes a user-selectable reset function that sets all DAC output voltages and internal registers to either zero-scale or mid-scale.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Accuracy - Linearity Error | VSS = 0V or –5V | ±2 | ±1 | ±1 | LSB |
| Linearity Matching | VSS = 0V or –5V | ±2 | ±1 | ±1 | LSB |
| Differential Linearity Error | VSS = 0V or –5V | ±1 | ±1 | ±1 | LSB |
| Monotonicity | 12 | 6 | Bits | ||
| Zero-Scale Error | Code = 000H | ±4 | 6 | LSB | |
| Zero-Scale Drift | 2 | 6 | ppm/°C | ||
| Full-Scale Error | Code = FFFH | LSB | |||
| Settling Time | 10µs | ||||
| Power Consumption | 20mW | ||||
| Operating Temperature Range | –40°C | +85°C | °C | ||
| Supply Voltage | +5V | ±5V | V |
Key Features
- Low power consumption: 20mW
- Unipolar or bipolar operation
- 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 or zero-scale
- Second-source for DAC8420
- Available in 16-pin plastic DIP, 16-lead SOIC, or 20-lead SSOP packages
Applications
- ATE pin electronics
- Process control
- Closed-loop servo-control
- Motor control
- Data acquisition systems
Q & A
- What is the resolution of the DAC7614P?
The DAC7614P is a 12-bit digital-to-analog converter.
- What is the temperature range over which the DAC7614P is guaranteed to perform?
The DAC7614P is guaranteed to perform over a temperature range of –40°C to +85°C.
- What are the power supply options for the DAC7614P?
The DAC7614P can be powered from either a single +5V supply or dual ±5V supplies.
- What is the settling time of the DAC7614P?
The settling time of the DAC7614P is 10µs to 0.012%.
- Does the DAC7614P support unipolar or bipolar operation?
The DAC7614P supports both unipolar and bipolar operation.
- What types of packages are available for the DAC7614P?
The DAC7614P is available in 16-pin plastic DIP, 16-lead SOIC, or 20-lead SSOP packages.
- What is the purpose of the RESETSEL pin on the DAC7614P?
The RESETSEL pin selects whether the reset function sets all DAC output voltages and internal registers to zero-scale (code 000H) or mid-scale (code 800H).
- What are some common applications of the DAC7614P?
Common applications include ATE pin electronics, process control, closed-loop servo-control, motor control, and data acquisition systems.
- How does the DAC7614P handle the digital input?
The digital input is a 16-bit serial word that contains the 12-bit DAC code and a 2-bit address code that selects one of the four DACs.
- What is the maximum junction temperature of the DAC7614P?
The maximum junction temperature of the DAC7614P is +150°C.
