Overview
The TLC7528IDWG4, produced by Texas Instruments, is a dual 8-bit multiplying digital-to-analog converter (DAC) designed with separate on-chip data latches. This device is part of the TLC7528 series, which includes the TLC7528C, TLC7528E, and TLC7528I, each characterized for different operating temperature ranges. The TLC7528IDWG4 is specifically the industrial grade version, operating from −25°C to +85°C. It features exceptional DAC-to-DAC matching and is easily interfaced to microprocessors, making it suitable for various digital signal processing and 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 | −25°C to +85°C | |
| Supply Voltage Range | 4.75V to 5.25V, 14.5V to 15.5V | V |
| High-Level Input Voltage | 2.4V to 13.5V | V |
| Low-Level Input Voltage | 0.8V to 1.5V | V |
| CS Setup Time | 50 ns | ns |
| CS Hold Time | 0 ns | ns |
| DAC Select Setup Time | 50 ns | ns |
| DAC Select Hold Time | 10 ns | ns |
Key Features
- Easily interfaced to microprocessors through a common 8-bit input port.
- On-chip data latches for each DAC, allowing for independent control of DACA and DACB.
- Monotonic over the entire A/D conversion range.
- 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.
- Segmenting the high-order bits to minimize glitches during changes in the most significant bits.
Applications
- Digital signal processing and microprocessor-controlled gain-setting and signal-control applications.
- Digitally-programmable window comparators and upper- and lower-limit testers.
- Digitally-controlled dual telephone attenuators for stereo audio and telephone signal level control.
- Programmable state-variable or universal filters for low-pass, high-pass, and bandpass outputs.
Q & A
- What is the resolution of the TLC7528IDWG4?
The resolution of the TLC7528IDWG4 is 8 bits.
- What is the operating temperature range for the TLC7528IDWG4?
The operating temperature range for the TLC7528IDWG4 is −25°C to +85°C.
- How does the TLC7528IDWG4 interface with microprocessors?
The TLC7528IDWG4 interfaces with microprocessors through a common 8-bit input port using control signals such as CS, WR, and DACA/DACB.
- What is the power dissipation of the TLC7528IDWG4 at VDD = 5V?
The power dissipation of the TLC7528IDWG4 at VDD = 5V is 20 mW.
- Can the TLC7528IDWG4 be used in DSP applications?
- What is the settling time of the TLC7528IDWG4 at VDD = 5V?
The settling time of the TLC7528IDWG4 at VDD = 5V is 100 ns.
- Is the TLC7528IDWG4 interchangeable with other DACs?
- What are some common applications of the TLC7528IDWG4?
- What is the propagation delay time of the TLC7528IDWG4 at VDD = 5V?
The propagation delay time of the TLC7528IDWG4 at VDD = 5V is 80 ns.
- Does the TLC7528IDWG4 operate in voltage mode or current mode?
The TLC7528IDWG4 operates in voltage mode, producing a voltage output rather than a current output.
