Analog Devices Inc. AD8421BRZ-R7
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Mfr | Analog Devices Inc. |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C |
| Current - Supply | 2mA |
| Output Type | - |
| Number of Circuits | 1 |
| Slew Rate | 35V/µs |
| Supplier Device Package | 8-SOIC |
| -3db Bandwidth | 10 MHz |
| Current - Input Bias | 100 pA |
| Amplifier Type | Instrumentation |
| Voltage - Input Offset | 25 µV |
| Current - Output / Channel | 65 mA |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | AD8421 |
| REACH Status | REACH Unaffected |
| Standard Package | 1,000 |
| ECCN | EAR99 |
| HTSUS | 8542.33.0001 |
| Voltage - Supply Span (Min) | 5 V |
| Voltage - Supply Span (Max) | 36 V |
High CMRR Amplifier 10 MHz Bandwidth 5V to 36V Supply Range Instrumentation Amplifier
The AD8421BRZ-R7 is a high-performance, low-power, single-channel instrumentation amplifier designed by Analog Devices. This amplifier is specifically engineered for applications requiring high precision and low noise, such as signal conditioning and data acquisition. With a bandwidth of 10 MHz and a slew rate of 35 V/µs, the AD8421BRZ-R7 is capable of handling high-speed signals while maintaining excellent signal integrity. Its ultra-low input bias current of 0.1 nA and input offset voltage of 25 µV make it ideal for applications involving low-level signal measurements. The device operates within a wide voltage range of 5 V to 36 V, offering flexibility in power supply configurations. Additionally, the AD8421BRZ-R7 features a common-mode rejection ratio (CMRR) of 140 dB, ensuring robust performance even in the presence of high-frequency common-mode noise.
Key Features
The AD8421BRZ-R7 boasts several key features that enhance its performance and versatility. With a maximum input resistance of 30 GOhms, the amplifier provides excellent isolation between input signals, reducing the impact of noise and interference. The device operates over a temperature range of -40°C to +85°C, making it suitable for a wide range of industrial and commercial applications. Its quiescent current of 2.3 mA ensures low power consumption, which is critical for battery-powered or energy-efficient systems. The amplifier supports both single and dual power supply configurations, further increasing its adaptability to various system designs. The AD8421BRZ-R7 also delivers industry-leading noise performance, with an input voltage noise of 3 nV/√Hz and a current noise of 200 fA/√Hz, ensuring accurate signal amplification even at low signal levels.
Applications
The AD8421BRZ-R7 is widely used in applications that demand high precision and low noise performance.
● Medical instrumentation, such as ECG and EEG monitoring devices.
● Industrial data acquisition systems, sensor interfaces, and vibration analysis equipment.
● Automotive and consumer electronics applications.
Alternative AMP Models
● AD8421ARZ-R7: Similar to the AD8421BRZ-R7 but with a slightly different performance profile, offering enhanced stability at high gains and improved thermal performance.
● AD8421ARZ-RL: This model features a lead-free package, making it ideal for applications with strict environmental compliance requirements, while maintaining the same high performance as the AD8421BRZ-R7.
● AD8421BRZ-RL: A lead-free version of the AD8421BRZ-R7, designed for RoHS-compliant applications, with the same exceptional noise performance and CMRR.
● INA156EA/250: A Texas Instruments alternative, offering similar high CMRR and low noise performance, but with a different pinout and packaging, making it suitable for applications requiring Texas Instruments compatibility.
