Overview
The AD7887AR-REEL7 is a high-speed, low-power 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component operates from a single 2.7 V to 5.25 V power supply and is capable of a throughput rate of 125 kSPS. The AD7887AR-REEL7 features a successive approximation register (SAR) architecture and is available in an 8-lead narrow SOIC package. It is designed for applications requiring high speed and low power consumption, making it suitable for a variety of industrial, medical, and communication systems.
Key Specifications
| Category | Data |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| RoHS Status | Contains lead / RoHS non-compliant |
| Input Type | Single Ended |
| Architecture | SAR |
| Configuration | MUX-S/H-ADC |
| Mounting Type | Surface Mount |
| Data Interface | SPI, DSP |
| Number of Bits | 12 |
| Reference Type | External, Internal |
| Ratio - S/H:ADC | 1:1 |
| Number of Inputs | 1, 2 |
| Operating Temperature | -40°C ~ 125°C |
| Voltage - Supply, Analog | 2.7V ~ 5.25V |
| Voltage - Supply, Digital | 2.7V ~ 5.25V |
| Sampling Rate (Per Second) | 125k |
Key Features
- High-speed conversion rate of 125 kSPS with a 2 MHz clock.
- Low power consumption: typically 2 mW in normal operation and 3 μW in power-down mode.
- Single-ended analog input channels with an input range of 0 to VREF or 0 to VDD depending on the configuration.
- On-chip track-and-hold circuit with a signal acquisition time of 500 ns.
- Serial interface with SPI, DSP compatibility.
- Internal or external reference voltage options.
- Compact 8-lead SOIC package suitable for space-constrained applications.
- Stable operation over a wide temperature range of -40°C to 125°C.
Applications
- Battery-powered systems such as personal digital assistants, medical instruments, and mobile communications devices.
- Instrumentation and control systems.
- High-speed modems.
- Medical devices.
- Portable battery-powered devices.
- Industrial automation and data acquisition systems.
Q & A
- What is the resolution of the AD7887AR-REEL7 ADC? The AD7887AR-REEL7 is a 12-bit analog-to-digital converter.
- What is the operating voltage range of the AD7887AR-REEL7? The component operates from a single 2.7 V to 5.25 V power supply.
- What is the maximum sampling rate of the AD7887AR-REEL7? The AD7887AR-REEL7 can achieve a throughput rate of 125 kSPS.
- What types of input channels does the AD7887AR-REEL7 support? The AD7887AR-REEL7 supports single-ended analog input channels and can be configured for either single-channel or dual-channel operation.
- What is the package type of the AD7887AR-REEL7? The component is available in an 8-lead narrow SOIC package.
- What is the operating temperature range of the AD7887AR-REEL7? The component operates over a temperature range of -40°C to 125°C.
- Does the AD7887AR-REEL7 support external or internal reference voltages? Yes, the AD7887AR-REEL7 supports both external and internal reference voltage options.
- What is the power consumption of the AD7887AR-REEL7 in normal and power-down modes? The component consumes typically 2 mW in normal operation and 3 μW in power-down mode.
- Is the AD7887AR-REEL7 RoHS compliant? No, the AD7887AR-REEL7 contains lead and is not RoHS compliant.
- What are some typical applications of the AD7887AR-REEL7? Typical applications include battery-powered systems, instrumentation and control systems, high-speed modems, medical devices, and industrial automation.
