Overview
The AD9743BCPZ is a high-performance, dual-channel digital-to-analog converter (DAC) produced by Analog Devices Inc. This component is part of the AD9743/AD9745/AD9746/AD9747 family, which are pin-compatible and offer various resolutions and sample rates. The AD9743 specifically features 10-bit resolution and a sample rate of up to 250 MSPS, making it suitable for high-speed and high-dynamic-range applications.
The device is designed for direct conversion transmit applications and includes features such as gain and offset compensation. It also interfaces seamlessly with analog quadrature modulators, enhancing its utility in wireless and wideband communication systems.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 10 | - | - | Bits |
| Differential Nonlinearity (DNL) | ±0.05 | - | - | LSB |
| Integral Nonlinearity (INL) | ±0.10 | - | - | LSB |
| Offset Error | ±0.001 | - | - | %FSR |
| Gain Error | ±2.0 | - | - | %FSR |
| Full-Scale Output Current | 8.6 | - | 31.7 | mA |
| Output Compliance Voltage | -1.0 | - | +1.0 | V |
| Output Resistance | 10 | - | - | MΩ |
| Sample Rate | - | - | 250 | MSPS |
| Power Dissipation | - | - | 315 | mW |
| Operating Temperature | -40 | - | 85 | °C |
| Package | - | - | - | 72-Lead LFCSP |
Key Features
- High dynamic range with 10-bit resolution and sample rates up to 250 MSPS.
- Proprietary dynamic output architecture allowing synthesis of analog outputs beyond the Nyquist frequency.
- Dual DAC channels with differential analog current outputs programmable from 8.6 mA to 31.7 mA full-scale.
- Auxiliary 10-bit current DACs for external offset nulling.
- Internal 1.2 V precision reference voltage source.
- Operates from 1.8 V and 3.3 V supplies.
- Low power dissipation of 315 mW.
- Small footprint, RoHS-compliant 72-lead LFCSP package.
- Serial peripheral interface (SPI) for full programmability.
- Pin-programmable features for applications without a controller.
Applications
- Wireless infrastructure: W-CDMA, CDMA2000, TD-SCDMA, WiMAX.
- Wideband communications: LMDS/MMDS, point-to-point.
- Instrumentation.
- Radio frequency (RF) signal generators and arbitrary waveform generators.
Q & A
- What is the resolution and sample rate of the AD9743BCPZ?
The AD9743BCPZ has a 10-bit resolution and a sample rate of up to 250 MSPS.
- What are the power supply requirements for the AD9743BCPZ?
The device operates from 1.8 V and 3.3 V supplies.
- What is the power dissipation of the AD9743BCPZ?
The power dissipation is 315 mW.
- What is the package type and size of the AD9743BCPZ?
The device is packaged in a 72-lead LFCSP (Lead Frame Chip Scale Package) with an exposed pad.
- What are the key applications of the AD9743BCPZ?
The key applications include wireless infrastructure, wideband communications, instrumentation, and RF signal generators.
- Does the AD9743BCPZ support SPI interface?
Yes, the device supports a serial peripheral interface (SPI) for full programmability.
- What is the operating temperature range of the AD9743BCPZ?
The operating temperature range is from -40°C to 85°C.
- Can the AD9743BCPZ generate analog outputs beyond the Nyquist frequency?
Yes, the proprietary dynamic output architecture allows for the synthesis of analog outputs beyond the Nyquist frequency.
- What are the auxiliary DAC features of the AD9743BCPZ?
The device includes auxiliary 10-bit current DACs for external offset nulling.
- Is the AD9743BCPZ RoHS-compliant?
Yes, the device is RoHS-compliant.
