Overview
The AD9750AR REEL, produced by Analog Devices Inc., is a 10-bit resolution, high-performance digital-to-analog converter (DAC) that is part of the TxDAC series. This second-generation 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, making it suitable for wideband communication applications. The AD9750 is manufactured on an advanced CMOS process, incorporating a segmented current source architecture and a proprietary switching technique to enhance dynamic performance and reduce spurious components.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 10 | Bits | ||
| Integral Linearity Error (INL) | -1.0 | ±0.1 | +1.0 | LSB |
| Differential Nonlinearity (DNL) | -0.5 | ±0.1 | +0.5 | LSB |
| Analog Output Offset Error | -0.02 | +0.02 | % of FSR | |
| Analog Output Gain Error (Without Internal Reference) | -2 | ±0.5 | +2 | % of FSR |
| Analog Output Gain Error (With Internal Reference) | -5 | ±1.5 | +5 | % of FSR |
| Full-Scale Output Current | 2.0 | 20.0 | mA | |
| Output Compliance Range | -1.0 | 1.25 | V | |
| Output Resistance | 100 | kΩ | ||
| Output Capacitance | 5 | pF | ||
| Reference Voltage | 1.14 | 1.20 | 1.26 | V |
| Maximum Output Update Rate (fCLOCK) | 125 | MSPS | ||
| Output Settling Time (tST) (to 0.1%) | 35 | ns | ||
| Output Propagation Delay (tPD) | 1 | ns | ||
| Power Dissipation @ 5 V | 190 | mW | ||
| Power-Down Mode @ 5 V | 20 | mW |
Key Features
- 10-bit resolution with high performance and low power consumption.
- Update rates up to 125 MSPS.
- Edge-triggered input latches and a 1.2 V temperature-compensated bandgap reference.
- Differential current outputs: 2 mA to 20 mA.
- CMOS-compatible digital interface: +2.7 V to +5.5 V.
- Available in 28-lead SOIC and TSSOP packages.
- Power-down mode reduces standby power dissipation to approximately 20 mW.
- Segmented current source architecture combined with a proprietary switching technique to enhance dynamic performance.
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 AD9750AR REEL?
The AD9750AR REEL has a 10-bit resolution.
- What is the maximum update rate of the AD9750AR REEL?
The maximum update rate is up to 125 MSPS.
- What are the available package types for the AD9750AR REEL?
The AD9750AR REEL is available in 28-lead SOIC and TSSOP packages.
- What is the power consumption of the AD9750AR REEL in normal operation and power-down mode?
In normal operation, the power consumption is 190 mW @ 5 V, and in power-down mode, it is approximately 20 mW @ 5 V.
- What is the output current range of the AD9750AR REEL?
The output current range is from 2 mA to 20 mA.
- Does the AD9750AR REEL have an internal reference voltage?
Yes, it has a 1.2 V temperature-compensated bandgap reference.
- What are some common applications of the AD9750AR REEL?
Common applications include wideband communication transmit channels, direct IF basestations, wireless local loop, digital radio links, direct digital synthesis (DDS), and instrumentation.
- What is the output compliance range of the AD9750AR REEL?
The output compliance range is from -1.0 V to 1.25 V.
- Is the AD9750AR REEL CMOS-compatible?
Yes, it has a CMOS-compatible digital interface operating from +2.7 V to +5.5 V.
- How does the AD9750AR REEL enhance dynamic performance?
The AD9750AR REEL uses a segmented current source architecture combined with a proprietary switching technique to enhance dynamic performance and reduce spurious components.
