Overview
The AD9704BCPZ, produced by Analog Devices Inc., is part of the fourth-generation TxDAC series of high-performance, CMOS digital-to-analog converters (DACs). This 8-bit DAC is optimized for low power operation while maintaining excellent dynamic performance, making it suitable for various communication systems. The AD9704 is pin-compatible with the AD9748/AD9740/AD9742/AD9744 family of TxDAC converters and shares the same interface and package, facilitating easy component selection based on performance, resolution, and cost.
Key Specifications
| Parameter | Unit | Min | Typ | Max |
|---|---|---|---|---|
| Resolution | Bits | 8 | ||
| Integral Nonlinearity (INL) Precalibration | LSB | ±0.41 | ±1.48 | |
| Integral Nonlinearity (INL) Postcalibration | LSB | ±0.10 | ±0.30 | |
| Differential Nonlinearity (DNL) Precalibration | LSB | ±0.35 | ±1.17 | |
| Differential Nonlinearity (DNL) Postcalibration | LSB | ±0.09 | ±0.13 | |
| Digital Supply Current (IDVDD) | mA | 4.6 | 6.6 | |
| Clock Supply Current (ICLKVDD) | mA | 4.1 | 4.7 | |
| Power Dissipation | mW | 45.5 | 57 | |
| Supply Current Sleep Mode (IAVDD) | mA | 0.37 | 0.4 | |
| Supply Current Power-Down Mode (IAVDD) | µA | 0.7 | 7.5 | |
| Logic 1 Voltage | V | 2.1 | 3 | |
| Logic 0 Voltage | V | 0 | 0.9 | |
| Input Capacitance | pF | 5 | ||
| Input Setup Time, tS, +25°C | ns | 1.4 | ||
| Input Hold Time, tH, +25°C | ns | 0.3 |
Key Features
- High Performance: The AD9704 offers excellent ac and dc performance, supporting update rates up to 175 MSPS.
- Low Power Operation: Optimized for low power consumption, with power dissipation as low as 15 mW by adjusting the full-scale current output.
- Flexible Power Supply: Operates within a wide power supply range of 1.7 V to 3.6 V.
- Power-Down Mode: Reduces standby power dissipation to approximately 2.2 mW.
- Adjustable Output and Common-Mode: Allows for easy interfacing with other components requiring common modes from 0 V to 1.2 V.
- Edge-Triggered Input Latches and Reference: Includes a 1.0 V temperature-compensated band gap reference and edge-triggered input latches for a complete monolithic DAC solution.
- Digital Interface Compatibility: Supports 1.8 V and 3.3 V CMOS logic families.
- Compact Package: Available in a 32-lead LFCSP (5mm x 5mm) package, which is RoHS compliant.
Applications
The AD9704 is specifically optimized for the transmit signal path of communication systems. It is suitable for various applications including:
- Wireless communication systems
- Baseband and IF signal processing
- Portable and low-power communication devices
- High-speed data acquisition and signal generation
Q & A
- What is the resolution of the AD9704?
The AD9704 has an 8-bit resolution.
- What is the maximum update rate of the AD9704?
The AD9704 supports update rates up to 175 MSPS.
- What is the power supply range for the AD9704?
The AD9704 operates within a power supply range of 1.7 V to 3.6 V.
- How does the power-down mode affect power consumption?
The power-down mode reduces the standby power dissipation to approximately 2.2 mW.
- What type of digital interface does the AD9704 support?
The AD9704 supports 1.8 V and 3.3 V CMOS logic families.
- What is the package type and size of the AD9704?
The AD9704 is available in a 32-lead LFCSP (5mm x 5mm) package.
- Does the AD9704 have an adjustable output and common-mode feature?
Yes, the AD9704 allows for adjustable output and common-mode from 0 V to 1.2 V.
- Is the AD9704 RoHS compliant?
Yes, the AD9704 is RoHS compliant.
- What are some typical applications for the AD9704?
The AD9704 is typically used in wireless communication systems, baseband and IF signal processing, portable and low-power communication devices, and high-speed data acquisition and signal generation.
- Does the AD9704 have a serial peripheral interface (SPI)?
Yes, the AD9704 has an optional serial peripheral interface (SPI) for higher programmability.
