Overview
The DAC7724UB, produced by Texas Instruments, is a 12-bit quad voltage output digital-to-analog converter (DAC). It is part of the DAC7724 and DAC7725 series, known for their guaranteed 12-bit monotonic performance over a specified temperature range. These converters accept 12-bit parallel input data and feature double-buffered DAC input logic, allowing for the simultaneous update of all DACs. They also provide a readback mode for the internal input registers and an asynchronous reset function that sets all registers to either mid-scale (800H for DAC7724) or zero-scale (000H for DAC7725). The DAC7724UB is suitable for various applications due to its low power consumption and compact size.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Linearity Error | - | ±2 | ±1 | - | LSB |
| Linearity Matching | - | ±2 | ±1 | - | LSB |
| Differential Linearity Error | - | ±1 | ±1 | - | LSB |
| Monotonicity | TMIN to TMAX | 12 | 6 | - | Bits |
| Zero-Scale Error | Code = 004H | ±4 | 6 | - | LSB |
| Zero-Scale Drift | - | 2 | 6 | - | ppm/°C |
| Full-Scale Error | Code = FFFH | ±4 | 6 | - | LSB |
| Settling Time | - | - | 10µs to 0.012% | - | - |
| Operating Temperature Range | - | -40°C | - | +85°C | °C |
| Power Supply | - | +15V or ±15V | - | - | V |
| Package Type | - | PLCC-28 or SO-28 | - | - | - |
Key Features
- Low Power Consumption: Maximum power consumption of 250mW.
- Single and Dual Supply Operation: Can operate from a single +15V supply or from +15V and -15V supplies.
- Double-Buffered DAC Input Logic: Allows simultaneous update of all DACs.
- Readback Mode: Provides a readback mode of the internal input registers.
- Asynchronous Reset: Clears all registers to mid-scale (800H for DAC7724) or zero-scale (000H for DAC7725).
- Settling Time: 10µs to 0.012%.
- 12-Bit Linearity and Monotonicity: Guaranteed over the specified temperature range.
- Compact Size: Available in PLCC-28 or SO-28 packages.
Applications
- Automatic Test Equipment: Ideal for testing and calibration purposes.
- DAC-per-Pin Programmers: Suitable for programming multiple DACs simultaneously.
- Data Acquisition Systems: Used in systems that require precise analog output from digital data.
- Closed-Loop Servo-Control: Applied in control systems that require accurate and stable analog outputs.
- Process Control and Motor Control: Utilized in industrial control systems for precise control and monitoring.
Q & A
- What is the resolution of the DAC7724UB?
The DAC7724UB is a 12-bit digital-to-analog converter.
- What are the operating temperature ranges for the DAC7724UB?
The operating temperature range is from -40°C to +85°C.
- Can the DAC7724UB operate on a single supply or dual supplies?
Yes, it can operate from a single +15V supply or from +15V and -15V supplies.
- What is the settling time of the DAC7724UB?
The settling time is 10µs to 0.012%.
- Does the DAC7724UB have a readback feature?
Yes, it provides a readback mode of the internal input registers.
- What is the effect of the asynchronous reset on the DAC7724UB?
The asynchronous reset clears all registers to mid-scale (800H for DAC7724) or zero-scale (000H for DAC7725).
- What are the typical applications of the DAC7724UB?
It is used in automatic test equipment, DAC-per-pin programmers, data acquisition systems, and closed-loop servo-control.
- What is the maximum power consumption of the DAC7724UB?
The maximum power consumption is 250mW.
- What are the package options for the DAC7724UB?
It is available in PLCC-28 or SO-28 packages.
- Does the DAC7724UB have double-buffered DAC input logic?
Yes, it allows simultaneous update of all DACs.
- What is the recommended voltage reference for the DAC7724UB?
The recommended voltage references are REF02 and REF102.
