Overview
The TLC7528IFNR, 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 TLC7528IFNR is specifically designed for operation from −25°C to +85°C, making it suitable for a wide range of applications requiring precise digital-to-analog conversion.
The device features TTL-compatible digital inputs when operated at a 5V supply voltage and can operate with supply voltages ranging from 5V to 15V. It is designed for easy interface with microprocessors and digital signal processors (DSPs), including the TMS320 series.
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 | |
| Storage Temperature Range | −65°C to +150°C | |
| Reference Voltage (VrefA or VrefB) | ±10 V | |
| High-Level Input Voltage (VIH) | 2.4 V to 13.5 V | |
| Low-Level Input Voltage (VIL) | 0.8 V to 1.5 V |
Key Features
- Easily interfaced to microprocessors and DSPs, including the TMS320 series.
- On-chip data latches for each DAC.
- Monotonic over the entire A/D conversion range.
- Interchangeable with Analog Devices AD7528 and PMI PM-7528.
- Voltage-mode operation producing a voltage output rather than a current output.
- CMOS technology for low power consumption.
- Segmenting of high-order bits to minimize glitches during changes in the most significant bits.
- 2- or 4-quadrant multiplying capability, making it suitable for gain-setting and signal-control applications.
Applications
- Digital signal processing (DSP) applications.
- Microprocessor-controlled gain-setting and signal-control applications.
- Digitally-programmable window comparators and upper- and lower-limit testers.
- Digitally-controlled signal attenuators, such as in 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 TLC7528IFNR?
The resolution of the TLC7528IFNR is 8 bits.
- What is the operating temperature range of the TLC7528IFNR?
The operating temperature range of the TLC7528IFNR is −25°C to +85°C.
- Can the TLC7528IFNR be used with different supply voltages?
- Is the TLC7528IFNR compatible with other DAC models?
- What is the settling time of the TLC7528IFNR at VDD = 5V?
The settling time at VDD = 5V is 100 ns.
- How does the TLC7528IFNR minimize glitches during digital input changes?
The device segments the high-order bits to minimize glitches during changes in the most significant bits.
- What are some common applications of the TLC7528IFNR?
Common applications include DSP applications, microprocessor-controlled gain-setting, digitally-programmable window comparators, and programmable state-variable filters.
- Can the TLC7528IFNR be used in audio signal control?
- What is the power dissipation of the TLC7528IFNR at VDD = 5V?
The power dissipation at VDD = 5V is 20 mW.
- Is the TLC7528IFNR compatible with TTL logic levels?
