Overview
The AD9752AR, produced by Analog Devices Inc., is a 12-bit resolution, high-performance, low-power CMOS digital-to-analog converter (DAC) and a member of the TxDAC series. This second-generation DAC is optimized for the transmit signal path of communication systems, offering exceptional AC and DC performance. It supports update rates up to 125 MSPS and features a flexible single-supply operating range of 4.5 V to 5.5 V, making it suitable for both portable and low-power applications. The AD9752AR is manufactured using an advanced CMOS process and includes a segmented current source architecture and proprietary switching techniques to enhance dynamic performance.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Update Rate | Up to 125 MSPS |
| DAC Type | Current Output |
| Data Input Format | Straight Binary |
| Interface | Parallel |
| Operating Temperature Range | -40°C to 85°C |
| Power Dissipation | 185 mW @ 5 V (typical), 20 mW @ 5 V (power-down mode) |
| Supply Voltage Range | +2.7 V to +5.5 V (digital), +4.5 V to +5.5 V (analog) |
| Output Current Range | 2 mA to 20 mA |
| Output Impedance | > 100 kΩ |
| Package | 28-Lead SOIC and TSSOP |
Key Features
- High performance with excellent spurious free dynamic range (SFDR) to Nyquist @ 5 MHz output: 79 dBc
- Differential current outputs with matching between the two outputs for enhanced dynamic performance in differential output configurations
- On-chip 1.20 V temperature-compensated bandgap reference and control amplifier for maximum accuracy and flexibility
- Edge-triggered input latches and segment decoding logic circuitry
- Power-down mode reducing standby power dissipation to approximately 20 mW
- Flexible full-scale current adjustment from 2 mA to 20 mA
- CMOS-compatible digital interface supporting +2.7 V to +5.5 V logic families
Applications
- Wideband communication systems
- Direct IF basestations
- Wireless local loop
- Digital radio links
- Direct digital synthesis (DDS)
- Instrumentation
Q & A
- What is the resolution of the AD9752AR DAC?
The AD9752AR has a 12-bit resolution.
- What is the maximum update rate of the AD9752AR?
The AD9752AR supports update rates up to 125 MSPS.
- What type of output does the AD9752AR provide?
The AD9752AR provides differential current outputs.
- What is the operating temperature range of the AD9752AR?
The operating temperature range is -40°C to 85°C.
- How much power does the AD9752AR typically dissipate?
The AD9752AR typically dissipates 185 mW at 5 V, and 20 mW in power-down mode.
- What are the package options for the AD9752AR?
The AD9752AR is available in 28-Lead SOIC and TSSOP packages.
- Can the AD9752AR be used in differential output configurations?
- Is the AD9752AR suitable for low-power applications?
- What is the voltage range of the digital interface of the AD9752AR?
The digital interface supports +2.7 V to +5.5 V CMOS logic families.
- Does the AD9752AR have an on-chip reference voltage?
