Overview
The AD9837ACPZ-RL7 from Analog Devices Inc. is a low-power, programmable waveform generator capable of producing sine, triangular, and square wave outputs. This device operates with a power supply range of 2.3V to 5.5V and features a 3-wire serial interface compatible with DSP and microcontroller standards, operating at clock rates up to 40 MHz. The AD9837 is designed for various applications requiring waveform generation, including sensing, actuation, and time domain reflectometry (TDR).
Key Specifications
| Parameter | Value | Unit | Description |
|---|---|---|---|
| Power Supply | 2.3 to 5.5 | V | Operating voltage range |
| Current Consumption | 3.7 to 5.0 (A Grade), 4.5 to 5.5 (B Grade) | mA | Typical current consumption at VDD = 2.3V to 5.5V |
| Low Power Sleep Mode | 0.5 to 0.8 | mA | Current consumption when DAC is powered down |
| Operating Temperature Range | -40 to +125 | °C | Operating temperature range |
| Resolution | 10 bits | Typical resolution at VDD = 2.3V to 5.5V | |
| Update Rate | Up to 5 MSPS | Maximum update rate at VDD = 2.3V to 5.5V | |
| Integral Nonlinearity (INL) | ±1.0 LSB | Typical INL at VDD = 2.3V to 5.5V | |
| Differential Nonlinearity (DNL) | ±0.5 LSB | Typical DNL at VDD = 2.3V to 5.5V | |
| Signal-to-Noise Ratio (SNR) | -64 dB | Typical SNR at MCLK = 5 MHz, fOUT = fMCLK/4096 | |
| Total Harmonic Distortion (THD) | -68 dBc | Typical THD at fMCLK = 5 MHz, fOUT = fMCLK/4096 | |
| Package Type | 10-lead LFCSP-WD | Package type |
Key Features
- Digitally programmable frequency and phase
- 3-wire SPI interface operating at clock rates up to 40 MHz
- Capable of generating sine, triangular, and square wave outputs
- Low power consumption with a sleep mode option
- Internal circuitry includes a numerically controlled oscillator (NCO), frequency and phase modulators, SIN ROM, a digital-to-analog converter, and a regulator
- Supports complex modulation schemes in the digital domain
Applications
- Frequency stimulus/waveform generation
- Liquid and gas flow measurement
- Sensory applications: proximity, motion, and defect detection
- Line loss/attenuation measurement
- Test and medical equipment
- Sweep/clock generators
- Time domain reflectometry (TDR) applications
Q & A
- What is the operating voltage range of the AD9837ACPZ-RL7?
The operating voltage range is 2.3V to 5.5V.
- What types of waveforms can the AD9837ACPZ-RL7 generate?
The device can generate sine, triangular, and square wave outputs.
- What is the maximum clock rate of the serial interface?
The serial interface operates at clock rates up to 40 MHz.
- What is the resolution of the AD9837ACPZ-RL7?
The resolution is typically 10 bits at VDD = 2.3V to 5.5V.
- What is the maximum update rate of the AD9837ACPZ-RL7?
The maximum update rate is up to 5 MSPS at VDD = 2.3V to 5.5V.
- What is the typical signal-to-noise ratio (SNR) of the AD9837ACPZ-RL7?
The typical SNR is -64 dB at MCLK = 5 MHz, fOUT = fMCLK/4096.
- What is the typical total harmonic distortion (THD) of the AD9837ACPZ-RL7?
The typical THD is -68 dBc at fMCLK = 5 MHz, fOUT = fMCLK/4096.
- What is the package type of the AD9837ACPZ-RL7?
The package type is a 10-lead LFCSP-WD.
- What are some common applications of the AD9837ACPZ-RL7?
Common applications include frequency stimulus/waveform generation, sensory applications, line loss/attenuation measurement, test and medical equipment, and time domain reflectometry (TDR) applications.
- Does the AD9837ACPZ-RL7 support low power modes?
