Overview
The AD7895BR-2 is a 12-bit Analog to Digital Converter (ADC) produced by Analog Devices Inc. This component is designed for high-speed data acquisition applications and is housed in a compact 8-pin SOIC package. It operates from a single +5 V supply, making it suitable for a variety of power-constrained environments. The AD7895BR-2 features a successive approximation ADC, an on-chip track/hold amplifier, and a high-speed serial interface, ensuring efficient and accurate analog-to-digital conversion.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Conversion Time | 3.8 µs |
| Supply Voltage | +5 V |
| Power Consumption | 20 mW max |
| Input Ranges | ±10 V, ±2.5 V, 0 V to +2.5 V |
| Input Resistance | Typically 33 kΩ (±10 V), 12 kΩ (±2.5 V) |
| Operating Temperature | –40°C to +85°C |
| Package Type | 8-pin SOIC |
Key Features
- High-speed successive approximation ADC with a conversion time of 3.8 µs.
- On-chip track/hold amplifier and internal clock.
- High-speed serial interface with serial clock input and serial data output.
- Low power consumption with a maximum of 20 mW and automatic power-down mode.
- High input impedance with no dynamic charging currents.
- Compact 8-pin SOIC package, ideal for space-constrained applications.
Applications
The AD7895BR-2 is suitable for various data acquisition applications, including industrial control systems, medical devices, and automotive systems. Its high speed and low power consumption make it particularly useful in battery-powered devices and other power-sensitive applications.
Q & A
- What is the resolution of the AD7895BR-2?
The AD7895BR-2 has a resolution of 12 bits. - What is the conversion time of the AD7895BR-2?
The conversion time is 3.8 µs. - What are the available input voltage ranges for the AD7895BR-2?
The available input voltage ranges are ±10 V, ±2.5 V, and 0 V to +2.5 V. - What is the typical input resistance of the AD7895BR-2?
The typical input resistance is 33 kΩ for ±10 V and 12 kΩ for ±2.5 V. - What is the operating temperature range of the AD7895BR-2?
The operating temperature range is –40°C to +85°C. - What type of package does the AD7895BR-2 come in?
The AD7895BR-2 comes in an 8-pin SOIC package. - How much power does the AD7895BR-2 consume?
The AD7895BR-2 consumes a maximum of 20 mW. - Does the AD7895BR-2 have an automatic power-down mode?
Yes, the AD7895BR-2 features an automatic power-down mode to reduce power consumption. - What is the purpose of the on-chip track/hold amplifier?
The on-chip track/hold amplifier ensures high input impedance and prevents dynamic charging currents. - What type of interface does the AD7895BR-2 use for data output?
The AD7895BR-2 uses a high-speed serial interface for data output.
