Overview
The AD7134BCPZ-RL7, produced by Analog Devices Inc., is a quad-channel, low-noise, simultaneous sampling, precision analog-to-digital converter (ADC). This device is based on the continuous time sigma-delta (CTSD) modulation scheme, which eliminates the need for traditional switched capacitor circuitry and external antialiasing filters. It offers high functionality, performance, and ease of use, making it an ideal choice for various precision data acquisition applications. The AD7134 features four independent converter channels, each supporting a maximum input bandwidth of 391.5 kHz and achieving tight phase matching between the channels. This integration and simplified analog front-end requirement enable a high-density multichannel data acquisition solution in a compact form factor.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Number of Channels | 4 | |||
| Resolution | 24 bits | |||
| Input Bandwidth | 391.5 kHz | |||
| Output Data Rate (ODR) | 0.01 kSPS | 1496 kSPS | ||
| Supply Voltage (AVDD5, DVDD5) | 4.5 V | 5.5 V | ||
| Supply Voltage (AVDD1V8, DVDD1V8, CLKVDD, IOVDD) | 1.65 V | 1.95 V | ||
| Package Type | 56-Lead Lead Frame Chip Scale Package (LFCSP) | |||
| Operating Temperature | 0°C | 85°C | ||
| Channel to Channel Phase Matching | 1.57 ns | 3.3 ns |
Key Features
- Quad-channel simultaneous sampling with tight phase matching between channels.
- Continuous time sigma-delta (CTSD) modulation scheme, eliminating the need for external antialiasing filters.
- High input bandwidth of up to 391.5 kHz per channel.
- Wide range of output data rates (ODR) from 0.01 kSPS to 1496 kSPS with fine adjustment resolution.
- Integrated asynchronous sample rate converter (ASRC) for precise control over decimation ratio and ODR.
- Simplified analog front-end requirements, reducing noise, error, mismatch, and distortion.
- Compact 8 mm × 8 mm, 56-lead lead frame chip scale package (LFCSP).
Applications
The AD7134BCPZ-RL7 is suitable for a wide range of precision data acquisition applications, including:
- Temperature and pressure measurement.
- Vibration and shock sensing.
- Industrial automation and control systems.
- Medical devices requiring high precision and low noise.
- Aerospace and defense applications where high reliability and performance are critical.
Q & A
- What is the resolution of the AD7134BCPZ-RL7 ADC?
The AD7134BCPZ-RL7 has a resolution of 24 bits. - How many channels does the AD7134BCPZ-RL7 support?
The device supports four independent converter channels. - What is the maximum input bandwidth per channel?
The maximum input bandwidth per channel is 391.5 kHz. - What is the range of output data rates (ODR) supported by the AD7134BCPZ-RL7?
The ODR ranges from 0.01 kSPS to 1496 kSPS. - What type of modulation scheme does the AD7134BCPZ-RL7 use?
The device uses a continuous time sigma-delta (CTSD) modulation scheme. - Does the AD7134BCPZ-RL7 require external antialiasing filters?
No, the CTSD architecture inherently rejects signals around the ADC aliasing frequency band, eliminating the need for external antialiasing filters. - What is the operating temperature range of the AD7134BCPZ-RL7?
The operating temperature range is from 0°C to 85°C. - What is the package type of the AD7134BCPZ-RL7?
The device is housed in a 56-lead lead frame chip scale package (LFCSP). - What are some common applications of the AD7134BCPZ-RL7?
Common applications include temperature and pressure measurement, vibration and shock sensing, industrial automation, medical devices, and aerospace and defense. - How does the AD7134BCPZ-RL7 simplify the analog front-end?
The device simplifies the analog front-end by reducing the need for complex external circuitry, thereby minimizing noise, error, mismatch, and distortion.
