Analog Devices Inc. ADA4896-2ARMZ
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) |
| Mfr | Analog Devices Inc. |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C |
| Current - Supply | 3mA (x2 Channels) |
| Output Type | Rail-to-Rail |
| Number of Circuits | 2 |
| Slew Rate | 120V/µs |
| Gain Bandwidth Product | 90 MHz |
| Supplier Device Package | 8-MSOP |
| -3db Bandwidth | 230 MHz |
| Current - Input Bias | 4 µA |
| Amplifier Type | Voltage Feedback |
| Voltage - Input Offset | 28 µV |
| Current - Output / Channel | 80 mA |
| Package | Tube |
| Product Status | Active |
| Base Product Number | ADA4896 |
| REACH Status | REACH Unaffected |
| Standard Package | 50 |
| ECCN | EAR99 |
| HTSUS | 8542.33.0001 |
| Voltage - Supply Span (Min) | 3 V |
| Voltage - Supply Span (Max) | 10 V |
Voltage Feedback Amplifier 2 Circuit ADA4896-2ARMZ Chip Detailed Introduction
The ADA4896-2ARMZ is a high-performance, low-noise, low-power voltage-feedback amplifier designed by Analog Devices. It features a wide supply voltage range of 3 V to 10 V and a quiescent current of only 3 mA per amplifier. This device offers extremely low wideband noise of 1 nV/√Hz and low 1/f noise of 2.4 nV/√Hz at 10 Hz, making it suitable for precision applications. It also provides high-speed performance with a -3 dB bandwidth of 230 MHz (at a gain of +1) and a slew rate of 120 V/µs, ensuring fast signal processing. The amplifier has a rail-to-rail output, allowing it to drive signals from the negative to the positive supply rail.
ADA4896-2ARMZ Applications
The ADA4896-2ARMZ is well-suited for a variety of high-precision and high-speed applications. It is commonly used in low-noise preamplifiers for sensitive signal conditioning, where its low noise floor and high dynamic range are critical. It is also widely used in ultrasound systems, where it can drive high-Q inductive loads and provide high-current gains for buffering low-level signals. Additionally, it serves as an excellent driver for high-performance ADCs and DAC buffers, ensuring accurate signal transmission and processing. Other applications include PLL loop filters and motor control systems.
Advantages and Limitations
·Advantages: The ADA4896-2ARMZ offers several key benefits, including its ultra-low noise performance, which is crucial for applications requiring high signal integrity. Its low power consumption and wide supply voltage range make it suitable for battery-powered and portable devices. The high-speed performance, with a fast slew rate and wide bandwidth, ensures that it can handle high-frequency signals efficiently. The rail-to-rail output capability further enhances its versatility in various signal conditioning tasks.
·Limitations: One potential limitation is that the device is optimized for low noise and high speed, which may come at the expense of higher power consumption compared to some ultra-low-power alternatives. Additionally, its performance may be limited in applications requiring extremely high voltage swings beyond its supply range.
Similar Voltage Feedback Amplifier Models
1. ADA4897-1: Similar low-noise, high-speed amplifier with a disable feature, suitable for applications requiring lower power consumption.
2. ADA4897-2: Dual-channel version of the ADA4897-1, offering similar performance characteristics with two independent amplifiers.
3. AD8021: Another high-speed amplifier with lower noise and similar bandwidth, but with a slightly higher power consumption.
