Overview
The TLC7628CDWR is a dual 8-bit multiplying digital-to-analog converter (DAC) produced by Texas Instruments. This device is designed with separate on-chip data latches and features exceptionally close DAC-to-DAC matching, making it suitable for various microprocessor-controlled applications. The TLC7628C operates from a 10.8-V to 15.75-V power supply and is TTL-compatible over this range, facilitating easy integration with most microprocessor buses and output ports.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 8 bits | |||
| Linearity Error | ±1/2 LSB | |||
| Power Dissipation | 20 mW | |||
| Settling Time | 100 ns | |||
| Propagation Delay Time | 80 ns | |||
| Supply Voltage Range | 10.8 V | 15.75 V | ||
| Operating Temperature Range | 0°C | +70°C | ||
| Gain Error | ±3 LSB (Full range), ±2 LSB (25°C) | |||
| AC Feedthrough | -65 dB (Full range), -75 dB (25°C) | |||
Key Features
- Separate on-chip data latches for each DAC, allowing independent control of each analog output.
- Exceptionally close DAC-to-DAC matching, which is crucial for applications requiring balanced outputs.
- TTL-compatible digital inputs, ensuring compatibility with a wide range of microprocessors and logic circuits.
- Operates from a 10.8-V to 15.75-V power supply, providing flexibility in system design.
- Fast control signaling with a settling time of 100 ns and propagation delay of 80 ns, suitable for high-speed applications.
- Capable of 2-quadrant or full 4-quadrant multiplication, making it versatile for various signal processing tasks.
- Low power dissipation of 20 mW, contributing to energy-efficient system design.
Applications
- Microprocessor-controlled gain-setting and signal-control applications.
- Digital signal processing (DSP) applications, including interfaces with Texas Instruments' TMS320 series.
- Voltage-mode operation, where the device can be used to generate analog output voltages based on digital inputs.
- Industrial control systems, where precise and balanced analog outputs are required.
- Aerospace and defense applications, where the device's robust specifications and reliability are critical.
Q & A
- What is the resolution of the TLC7628CDWR?
The TLC7628CDWR has a resolution of 8 bits.
- What is the operating temperature range of the TLC7628CDWR?
The operating temperature range is from 0°C to +70°C.
- Is the TLC7628CDWR TTL-compatible?
- What is the settling time of the TLC7628CDWR?
The settling time is 100 ns.
- Can the TLC7628CDWR perform 4-quadrant multiplication?
- How does the TLC7628CDWR interface with microprocessors?
The device interfaces through the data bus, CS, WR, and DACA/DACB control signals, allowing easy integration with most microprocessor buses and output ports.
- What is the power dissipation of the TLC7628CDWR?
The power dissipation is 20 mW.
- What are the typical applications of the TLC7628CDWR?
The TLC7628CDWR is used in microprocessor-controlled gain-setting and signal-control applications, DSP applications, and industrial control systems.
- Does the TLC7628CDWR require any external components for operation?
The device may require external resistors and capacitors for gain adjustment and phase compensation, depending on the application.
- What is the package type of the TLC7628CDWR?
The TLC7628CDWR is available in a 20-pin SOIC (Small Outline Integrated Circuit) package.
