Overview
The MAX187AEWE+ is a 12-bit, low-power, serial analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This component is part of the MAX187/MAX189 family, known for its high performance and low power consumption. It features a successive-approximation ADC with an internal track/hold circuit and an on-chip clock, making it suitable for a variety of applications where space and power efficiency are critical.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12 bits | |
| Number of Channels | 1 | |
| Interface Type | SPI, QSPI, MICROWIRE | |
| Sampling Rate | 75 kS/s | |
| Supply Voltage | 4.75 to 5.25 | V |
| Supply Current (Operating) | 1.5 to 2.5 mA (MAX187), 1.0 to 2.0 mA (MAX189) | mA |
| Power-Down Current | 2 to 10 μA | μA |
| Operating Temperature Range | 0°C to +70°C (MAX187_C_/MAX189_C_), -40°C to +85°C (MAX187_E_/MAX189_E_) | °C |
| Integral Nonlinearity | ±½ LSB (MAX187A/MAX189A) | |
| Conversion Time | 5.5 to 8.5 clock cycles | |
| Track/Hold Acquisition Time | 1.5 clock cycles |
Key Features
- 12-bit resolution with ±½ LSB integral nonlinearity (MAX187A/MAX189A)
- Internal track/hold circuit with a 1.5 clock cycle acquisition time
- On-chip clock and high-speed 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE
- Single +5V operation with low power consumption (7.5 mW) and ultra-low power-down mode (10 μA)
- Small package options: 8-pin PDIP and 16-pin SOIC
- Excellent AC characteristics, including -80 dB THD and 80 dB SFDR
Applications
The MAX187AEWE+ is ideal for applications where power consumption and space are critical, such as:
- Remote DSP and sensor applications
- Circuits requiring low power and small footprint
- Industrial control systems
- Medical devices
- Aerospace and defense systems
Q & A
- What is the resolution of the MAX187AEWE+ ADC?
The MAX187AEWE+ has a 12-bit resolution.
- What is the sampling rate of the MAX187AEWE+?
The sampling rate is 75 kS/s.
- What interface types are supported by the MAX187AEWE+?
The MAX187AEWE+ supports SPI, QSPI, and MICROWIRE interfaces.
- What is the operating voltage range of the MAX187AEWE+?
The operating voltage range is from 4.75V to 5.25V.
- How much power does the MAX187AEWE+ consume in operating mode?
The power consumption in operating mode is 7.5 mW.
- What is the power-down current of the MAX187AEWE+?
The power-down current is 2 to 10 μA.
- What are the package options available for the MAX187AEWE+?
The MAX187AEWE+ is available in 8-pin PDIP and 16-pin SOIC packages.
- What are the operating temperature ranges for the MAX187AEWE+?
The operating temperature ranges are 0°C to +70°C (MAX187_C_/MAX189_C_) and -40°C to +85°C (MAX187_E_/MAX189_E_).
- What is the integral nonlinearity of the MAX187AEWE+?
The integral nonlinearity is ±½ LSB for the MAX187A/MAX189A models.
- What are some typical applications of the MAX187AEWE+?
Typical applications include remote DSP and sensor applications, industrial control systems, medical devices, and aerospace and defense systems.
