Overview
The MAX187CEWE+ is a low-power, 12-bit successive-approximation analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This component is designed for applications where power consumption and space are critical. It features a high-speed 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE, making it suitable for integration with most digital signal processors and microcontrollers. The MAX187CEWE+ operates on a single +5V supply and is available in compact 8-pin PDIP and 16-pin SO packages.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12-bit | |
| Integral Nonlinearity (INL) | ±½ LSB (MAX187A) | |
| Operating Supply Voltage | 4.75 to 5.25 | V |
| Supply Current (Operating Mode) | 1.5 to 2.5 mA | mA |
| Power-Down Mode Current | 2 to 10 µA | µA |
| Sampling Rate | 75 kHz | kHz |
| Track/Hold Acquisition Time | 1.5 Fs | |
| Conversion Time | 5.5 to 8.5 Fs | |
| Operating Temperature Range | 0°C to +70°C (MAX187_C_ _) | °C |
| Storage Temperature Range | -60°C to +150°C | °C |
Key Features
- High-speed 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE.
- Internal track/hold circuit with a fast acquisition time of 1.5 Fs.
- On-chip clock and buffered reference (for MAX187).
- Low power consumption: 7.5 mW in operating mode and 10 µA in shutdown mode.
- Compact packaging: 8-pin PDIP and 16-pin SO packages.
- Excellent AC characteristics, including small-signal bandwidth rolloff of -3 dB at 4.5 MHz and full-power bandwidth of 0.8 MHz.
Applications
The MAX187CEWE+ is ideal for remote DSP and sensor applications, as well as circuits where power consumption and space are crucial. It is suitable for use in various fields such as:
- Remote data acquisition systems.
- Sensor interfaces.
- Portable and battery-powered devices.
- Industrial control systems.
- Medical devices requiring low power and high precision.
Q & A
- What is the resolution of the MAX187CEWE+ ADC?
The MAX187CEWE+ has a 12-bit resolution.
- What is the operating supply voltage range for the MAX187CEWE+?
The operating supply voltage range is from 4.75V to 5.25V.
- What is the typical power consumption of the MAX187CEWE+ in operating mode?
The typical power consumption is 7.5 mW.
- What is the shutdown mode current of the MAX187CEWE+?
The shutdown mode current is 10 µA.
- What types of serial interfaces are supported by the MAX187CEWE+?
The MAX187CEWE+ supports SPI, QSPI, and MICROWIRE serial interfaces.
- What is the sampling rate of the MAX187CEWE+?
The sampling rate is 75 kHz.
- What is the track/hold acquisition time of the MAX187CEWE+?
The track/hold acquisition time is 1.5 Fs.
- What are the typical operating temperature ranges for the MAX187CEWE+?
The operating temperature ranges are from 0°C to +70°C for the MAX187_C_ _ version.
- What are the storage temperature ranges for the MAX187CEWE+?
The storage temperature ranges are from -60°C to +150°C.
- In what types of applications is the MAX187CEWE+ commonly used?
The MAX187CEWE+ is commonly used in remote DSP and sensor applications, portable and battery-powered devices, industrial control systems, and medical devices requiring low power and high precision.
