Overview
The ADA4254ARUZ-R7 from Analog Devices Inc. is a zero-drift, high-voltage, low-power programmable gain instrumentation amplifier (PGIA) designed for process control and industrial applications. This device is renowned for its precision, robustness, and low power consumption, making it an excellent choice for systems that demand high accuracy and reliability. The ADA4254 features a zero-drift amplifier topology that self-calibrates DC errors and low-frequency 1/f noise, ensuring excellent DC precision over a wide temperature range. This amplifier offers 12 binary weighted gains and three scaling gain options, resulting in 36 possible gain settings, and it operates within a specified temperature range of −40°C to +105°C.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Number of Channels | 1 Channel |
| 3 dB Bandwidth | 2.3 MHz | SR - Slew Rate | 1.9 V/us |
| CMRR - Common Mode Rejection Ratio | 116 dB | Ib - Input Bias Current | ±1.5 nA |
| Vos - Input Offset Voltage | ±14 μV | Supply Voltage - Max | ±28 V |
| Supply Voltage - Min | ±5 V | Operating Supply Current | 1.3 mA |
| Minimum Operating Temperature | −40°C | Maximum Operating Temperature | +105°C |
| Mounting Style | SMD/SMT | Package | 24-Lead TSSOP |
Key Features
- Zero-drift amplifier topology for excellent DC precision and reduced calibration requirements.
- 12 binary weighted gains ranging from 1/16 V/V to 128 V/V and three scaling gain options (1 V/V, 1.25 V/V, and 1.375 V/V), resulting in 36 possible gain settings.
- Low power consumption of 22 mW (±12 V supplies).
- High CMRR of 116 dB minimum, G = 1 V/V.
- Low input bias current: ±1.5 nA maximum.
- High input impedance and integrated input EMI filtering.
- Wide input supply range: ±5 V to ±28 V.
- Dedicated output amplifier supplies and 7 GPIO ports with special functions.
- Sequential chip select mode, external multiplexer control, and excitation current sources.
- SPI port with checksum (CRC) support and internal fault detection.
- Wire break test currents and on-chip test multiplexer.
Applications
- Universal process control front ends.
- Data acquisition systems.
- Test and measurement systems.
Q & A
- Q: What is the ADA4254ARUZ-R7?
The ADA4254ARUZ-R7 is a zero-drift, high-voltage, low-power programmable gain instrumentation amplifier (PGIA) from Analog Devices Inc..
- Q: What are the key features of the ADA4254ARUZ-R7?
Key features include zero-drift amplifier topology, 12 binary weighted gains, low power consumption, high CMRR, low input bias current, and integrated EMI filtering among others.
- Q: What is the operating temperature range of the ADA4254ARUZ-R7?
The operating temperature range is from −40°C to +105°C.
- Q: What types of packages are available for the ADA4254ARUZ-R7?
The ADA4254ARUZ-R7 is available in a 24-lead TSSOP package.
- Q: What are the typical applications of the ADA4254ARUZ-R7?
Typical applications include universal process control front ends, data acquisition systems, and test and measurement systems.
- Q: How does the ADA4254ARUZ-R7 ensure robust communication?
The device features an SPI port with checksum (CRC) support to ensure robust communication.
- Q: What safety features does the ADA4254ARUZ-R7 have?
The ADA4254ARUZ-R7 includes various safety features such as internal and external fault detection, wire break test currents, and on-chip test multiplexer.
- Q: What is the power consumption of the ADA4254ARUZ-R7?
The power consumption is 22 mW (±12 V supplies).
- Q: How many GPIO ports does the ADA4254ARUZ-R7 have?
The device has 7 GPIO ports with special functions.
- Q: What is the warranty period for the ADA4254ARUZ-R7 from Ovaga?
Ovaga offers a 1-year warranty on the ADA4254ARUZ-R7.
