Overview
The AD9752ARZ, 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 DAC is optimized for the transmit signal path of communication systems and offers exceptional AC and DC performance. It supports update rates up to 125 MSPS and is available in 28-lead SOIC and TSSOP packages. The AD9752 is part of a pin-compatible family that includes 8-, 10-, 12-, and 14-bit DACs, allowing for flexible component selection based on performance, resolution, and cost.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Update Rate | Up to 125 MSPS |
| Package Type | 28-Lead SOIC and TSSOP |
| Digital Interface | CMOS-compatible +2.7 V to +5.5 V |
| Analog Supply Voltage | +4.5 V to +5.5 V |
| Full-Scale Output Current | 2 mA to 20 mA |
| Output Impedance | > 100 kΩ |
| Power Dissipation | 185 mW @ 5 V (active), 20 mW @ 5 V (power-down) |
| Spurious Free Dynamic Range (SFDR) | 79 dBc @ 5 MHz output |
Key Features
- High-performance, low-power CMOS DAC with exceptional AC and DC performance.
- Edge-triggered latches and segment decoding logic circuitry.
- On-chip 1.20 V temperature-compensated bandgap reference.
- Differential current outputs supporting single-ended or differential applications.
- Flexible full-scale current adjustment from 2 mA to 20 mA.
- Power-down mode reducing standby power dissipation to approximately 20 mW.
- Separate power supply inputs for analog and digital sections.
- Segmented current source architecture with proprietary switching technique to reduce spurious components.
Applications
- Wideband communication transmit channels.
- Direct IF basestations.
- Wireless local loop.
- Digital radio links.
- Direct digital synthesis (DDS).
- Instrumentation.
Q & A
- What is the resolution of the AD9752ARZ DAC?
The AD9752ARZ has a 12-bit resolution.
- What is the maximum update rate of the AD9752ARZ?
The AD9752ARZ supports update rates up to 125 MSPS.
- In what packages is the AD9752ARZ available?
The AD9752ARZ is available in 28-lead SOIC and TSSOP packages.
- What is the operating voltage range for the digital interface of the AD9752ARZ?
The digital interface operates over a +2.7 V to +5.5 V range.
- What is the full-scale output current range of the AD9752ARZ?
The full-scale output current can be adjusted from 2 mA to 20 mA.
- How much power does the AD9752ARZ dissipate in active and power-down modes?
The AD9752ARZ dissipates 185 mW @ 5 V in active mode and 20 mW @ 5 V in power-down mode.
- What is the Spurious Free Dynamic Range (SFDR) of the AD9752ARZ at 5 MHz output?
The SFDR is 79 dBc at 5 MHz output.
- Does the AD9752ARZ have on-chip reference and control amplifier?
Yes, the AD9752ARZ includes an on-chip 1.20 V temperature-compensated bandgap reference and a reference control amplifier.
- Can the AD9752ARZ be used in differential output configurations?
Yes, the AD9752ARZ provides differential current outputs to support single-ended or differential applications.
- What is the output impedance of the AD9752ARZ?
The output impedance is greater than 100 kΩ.
