Overview
The TLC7528EDW is a dual 8-bit multiplying digital-to-analog converter (DAC) produced by Texas Instruments. This device is part of the TLC7528 series, which includes the TLC7528C, TLC7528E, and TLC7528I, each characterized for different operating temperature ranges. The TLC7528EDW, specifically, is characterized for operation from −40°C to +85°C. It is designed with separate on-chip data latches and features exceptionally close DAC-to-DAC matching, making it suitable for various microprocessor-controlled applications.
Key Specifications
| Specification | Value | Unit |
|---|---|---|
| Resolution | 8 bits | |
| Linearity Error | 1/2 LSB | |
| Power Dissipation at VDD = 5V | 20 mW | |
| Settling Time at VDD = 5V | 100 ns | |
| Propagation Delay Time at VDD = 5V | 80 ns | |
| Operating Free-Air Temperature Range | −40°C to +85°C | |
| Supply Voltage Range | 5V to 15V | |
| High-Level Input Voltage | 2.4V to 13.5V | |
| Low-Level Input Voltage | 0.8V to 1.5V |
Key Features
- Easily interfaced to microprocessors with a common 8-bit input port and control signals (CS, WR, DACA/DACB).
- On-chip data latches for each DAC, allowing for independent control of each DAC.
- Monotonic over the entire A/D conversion range, ensuring predictable output behavior.
- Interchangeable with Analog Devices AD7528 and PMI PM-7528.
- Fast control signaling suitable for digital signal processor (DSP) applications, including interface with TMS320.
- Voltage-mode operation, producing a voltage output rather than a current output.
- CMOS technology for low power consumption and high performance.
Applications
- Microprocessor-controlled gain-setting and signal-control applications.
- Digitally-programmable window comparators and upper- and lower-limit testers.
- Programmable attenuators for audio and telephone signal level control.
- Digitally-controlled state-variable or universal filters for low-pass, high-pass, and bandpass outputs.
- Interface with microprocessors like the Z80-A for various control and monitoring tasks).
Q & A
- What is the resolution of the TLC7528EDW?
The TLC7528EDW has an 8-bit resolution).
- What is the operating temperature range of the TLC7528EDW?
The TLC7528EDW operates from −40°C to +85°C).
- What is the power dissipation of the TLC7528EDW at VDD = 5V?
The power dissipation is 20 mW at VDD = 5V).
- How does the TLC7528EDW interface with microprocessors?
The TLC7528EDW interfaces through a common 8-bit input port and control signals (CS, WR, DACA/DACB)).
- What are some common applications of the TLC7528EDW?
Common applications include microprocessor-controlled gain-setting, signal-control, programmable attenuators, and digitally-controlled filters).
- Is the TLC7528EDW compatible with other DAC models?
Yes, it is interchangeable with Analog Devices AD7528 and PMI PM-7528).
- What is the settling time of the TLC7528EDW at VDD = 5V?
The settling time is 100 ns at VDD = 5V).
- Can the TLC7528EDW be used in DSP applications?
Yes, it is suitable for DSP applications, including interface with TMS320).
- What technology is used in the TLC7528EDW?
The TLC7528EDW uses CMOS technology).
- What is the typical supply voltage range for the TLC7528EDW?
The supply voltage range is from 5V to 15V).
