Overview
The AD7194BCPZ, produced by Analog Devices Inc., is a highly integrated, low noise, 24-bit sigma-delta (Σ-Δ) analog-to-digital converter (ADC) designed for high precision measurement applications. It features an on-chip low noise gain stage, allowing signals of small amplitude to interface directly with the ADC. The device can be configured to have eight differential inputs or sixteen pseudo differential inputs, making it versatile for various measurement needs. The AD7194BCPZ operates with a power supply ranging from 3 V to 5.25 V and consumes a current of 4.65 mA, housed in a 32-lead LFCSP package.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 24-bit |
| Output Data Rate | 4.7 Hz to 4.8 kHz |
| Input Configuration | 8 differential or 16 pseudo differential inputs |
| Clock Source | Internal 4.92 MHz clock or external clock/crystal |
| Power Supply | 3 V to 5.25 V (AVDD), 2.7 V to 5.25 V (DVDD) |
| Current Consumption | 4.65 mA |
| Temperature Range | −40°C to +105°C |
| Package | 32-lead LFCSP |
| Interface | 3-wire serial SPI, QSPI™, MICROWIRE™, and DSP compatible |
| Gain Drift | ±1 ppm/°C |
| Programmable Gain | 1 to 128 |
Key Features
- Low noise, 24-bit sigma-delta ADC for high precision measurements.
- On-chip low noise gain stage for direct interface with small amplitude signals.
- Flexible digital filter with fast settling option and zero latency for settled conversions.
- Simultaneous 50 Hz/60 Hz rejection for noise reduction.
- Four general-purpose digital outputs.
- Support for internal or external clock sources.
- Compact 32-lead LFCSP package.
Applications
- PLC/DCS analog input modules.
- Data acquisition systems.
- Strain gage transducers.
- Pressure measurement.
- Temperature measurement.
- Flow measurement.
- Weigh scales.
- Chromatography.
- Medical and scientific instrumentation.
Q & A
- What is the resolution of the AD7194BCPZ ADC?
The AD7194BCPZ has a 24-bit resolution.
- What are the possible input configurations for the AD7194BCPZ?
The device can be configured to have eight differential inputs or sixteen pseudo differential inputs.
- What is the range of the output data rate for the AD7194BCPZ?
The output data rate can be varied from 4.7 Hz to 4.8 kHz.
- What are the power supply requirements for the AD7194BCPZ?
The device operates with a power supply ranging from 3 V to 5.25 V (AVDD) and 2.7 V to 5.25 V (DVDD).
- What is the current consumption of the AD7194BCPZ?
The device consumes a current of 4.65 mA.
- What is the temperature range for the AD7194BCPZ?
The device operates within a temperature range of −40°C to +105°C.
- What type of package does the AD7194BCPZ come in?
The device is housed in a 32-lead LFCSP package.
- What interfaces are supported by the AD7194BCPZ?
The device supports 3-wire serial SPI, QSPI™, MICROWIRE™, and DSP compatible interfaces.
- Does the AD7194BCPZ have any noise rejection features?
Yes, it has simultaneous 50 Hz/60 Hz rejection for noise reduction.
- What are some common applications of the AD7194BCPZ?
Common applications include PLC/DCS analog input modules, data acquisition systems, strain gage transducers, pressure measurement, temperature measurement, flow measurement, weigh scales, chromatography, and medical and scientific instrumentation.
