Overview
The AD7887ARMZ is a high-speed, low-power, 12-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This ADC operates from a single power supply ranging from 2.7 V to 5.25 V, making it versatile for various applications. It features a throughput rate of 125 kSPS and is capable of converting full power signals up to 2.5 MHz. The AD7887ARMZ is available in 8-lead MSOP and narrow SOIC packages, ensuring compact integration into diverse systems.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Throughput Rate | 125 kSPS |
| Power Supply Range | 2.7 V to 5.25 V |
| Input Channels | Single-channel or dual-channel |
| Analog Input Range (Single-channel) | 0 to VREF (up to VDD) |
| Analog Input Range (Dual-channel) | 0 to VDD |
| Input Track-and-Hold Acquisition Time | 500 ns |
| Output Coding | Straight binary |
| Power Dissipation (Normal Operation) | Typically 2 mW |
| Power Dissipation (Power-down Mode) | 3 μW |
| Package Type | 8-lead MSOP, 8-lead narrow SOIC |
| Operating Temperature Range | −40°C to +125°C |
Key Features
- High-speed successive approximation ADC with a throughput rate of 125 kSPS.
- Low power consumption: typically 2 mW in normal operation and 3 μW in power-down mode.
- Single-channel or dual-channel operation configurable via the on-chip control register.
- Internal 2.5 V reference voltage or external reference voltage option.
- CMOS construction for low power dissipation.
- Compact 8-lead MSOP and narrow SOIC packages.
- Serial interface for data access and clock source for the ADC.
Applications
- Battery-powered systems (personal digital assistants, medical instruments, mobile communications).
- Instrumentation and control systems.
- High-speed modems.
- Automotive applications.
Q & A
- What is the resolution of the AD7887ARMZ ADC?
The AD7887ARMZ has a 12-bit resolution.
- What is the throughput rate of the AD7887ARMZ?
The throughput rate is 125 kSPS.
- What is the power supply range for the AD7887ARMZ?
The power supply range is from 2.7 V to 5.25 V.
- Can the AD7887ARMZ be configured for single-channel or dual-channel operation?
Yes, it can be configured for either single-channel or dual-channel operation via the on-chip control register.
- What is the input track-and-hold acquisition time for the AD7887ARMZ?
The input track-and-hold acquisition time is 500 ns.
- What is the output coding format of the AD7887ARMZ?
The output coding is straight binary.
- How much power does the AD7887ARMZ consume in normal operation and power-down mode?
In normal operation, it consumes typically 2 mW, and in power-down mode, it consumes 3 μW.
- What types of packages are available for the AD7887ARMZ?
The AD7887ARMZ is available in 8-lead MSOP and 8-lead narrow SOIC packages.
- What is the operating temperature range for the AD7887ARMZ?
The operating temperature range is from −40°C to +125°C.
- What are some common applications for the AD7887ARMZ?
Common applications include battery-powered systems, instrumentation and control systems, high-speed modems, and automotive applications.
