Overview
The AD7887BR-REEL7, produced by Analog Devices Inc., is a 12-bit, dual-/single-channel analog-to-digital converter (ADC) designed for low power consumption and high performance. This ADC is available in an 8-lead SOIC package and is notable for its compact size and versatile operation. It can be configured for either single-channel or dual-channel operation, making it suitable for a variety of applications. The AD7887BR-REEL7 features a successive approximation register (SAR) architecture and supports a sampling rate of up to 125 kSPS. It operates on a single supply voltage ranging from 2.7 V to 5.25 V, making it compatible with both 3 V and 5 V systems.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Description | IC ADC 12BIT 2CH SRL 8-SOIC |
| Number of Bits | 12 |
| Number of A/D Converters | 1 |
| Number of Inputs | 1, 2 |
| Input Type | Single Ended |
| Voltage - Supply, Digital | 2.7 V ~ 5.25 V |
| Voltage - Supply, Analog | 2.7 V ~ 5.25 V |
| Reference Type | External, Internal |
| Sampling Rate (Per Second) | 125 kSPS |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Operating Temperature | -40°C ~ 125°C |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Data Interface | SPI, DSP |
| Architecture | SAR |
Key Features
- Low power consumption: Typically 2 mW in normal operation and 3 μW in power-down mode.
- Flexible power management: Automatic power-down after conversion.
- Read-only ADC capability: Can be operated as a read-only ADC in single-channel mode.
- Versatile serial interface: Compatible with SPI, QSPI, MICROWIRE, and DSP.
- Compact packaging: Available in 8-lead SOIC and MSOP packages.
- High accuracy: ±1 LSB accuracy over the operating temperature range.
- Configurable operation: Can be configured for either single-channel or dual-channel operation.
Applications
- Industrial control systems: Suitable for monitoring and control in industrial environments.
- Medical devices: Used in medical equipment requiring precise analog-to-digital conversion.
- Automotive systems: Applicable in automotive applications due to its robust operating temperature range.
- Consumer electronics: Used in various consumer devices requiring low power and high accuracy ADCs.
- Data acquisition systems: Ideal for data acquisition and logging applications.
Q & A
- What is the resolution of the AD7887BR-REEL7 ADC?
The AD7887BR-REEL7 is a 12-bit analog-to-digital converter.
- What are the possible supply voltage ranges for the AD7887BR-REEL7?
The AD7887BR-REEL7 can operate on a single supply voltage ranging from 2.7 V to 5.25 V.
- What is the maximum sampling rate of the AD7887BR-REEL7?
The maximum sampling rate is up to 125 kSPS.
- What types of packages are available for the AD7887BR-REEL7?
The AD7887BR-REEL7 is available in 8-lead SOIC and MSOP packages.
- Is the AD7887BR-REEL7 RoHS compliant?
No, the AD7887BR-REEL7 is not RoHS compliant.
- What is the operating temperature range of the AD7887BR-REEL7?
The operating temperature range is -40°C to 125°C.
- What types of serial interfaces does the AD7887BR-REEL7 support?
The AD7887BR-REEL7 supports SPI, QSPI, MICROWIRE, and DSP serial interfaces.
- Can the AD7887BR-REEL7 be configured for single-channel or dual-channel operation?
Yes, the AD7887BR-REEL7 can be configured for either single-channel or dual-channel operation.
- What is the typical power consumption of the AD7887BR-REEL7 in normal operation?
The typical power consumption is 2 mW in normal operation and 3 μW in power-down mode.
- Does the AD7887BR-REEL7 have an internal reference voltage?
Yes, the AD7887BR-REEL7 has an internal 2.5 V reference voltage, but it can also be overdriven by an external reference.
