Overview
The MAX189CCWE+ is a low-power, 12-bit 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, low power consumption, and compact packaging. The MAX189 is particularly suited for applications where space and power efficiency are critical, such as in remote DSP and sensor systems.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12-bit | |
| Integral Nonlinearity | ±½ LSB | |
| Sampling Rate | 75 kHz | |
| Supply Voltage | 4.75 to 5.25 | V |
| Supply Current (Operating) | 1.0 to 2.0 mA | |
| Supply Current (Power-down) | 2 to 10 µA | |
| Reference Type | External | |
| Reference Voltage | 4.75 V | |
| Conversion Time | 5.5 to 8.5 µs | |
| Track/Hold Acquisition Time | 1.5 µs | |
| Package Type | 16-SOIC |
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 µs.
- On-chip clock and external clock capability up to 4 MHz.
- Low power consumption: 7.5 mW in operating mode and 10 µW in shutdown mode.
- Excellent AC characteristics: THD -80 dB, SFDR 80 dB, and small-signal bandwidth rolloff at -3 dB at 4.5 MHz.
- Compact packaging options including 8-pin PDIP and 16-pin SOIC.
Applications
The MAX189CCWE+ is ideal for various applications where low power consumption and compact size are essential. These include:
- Remote DSP and sensor systems.
- Data acquisition systems.
- Circuits where power consumption and space are critical.
- Industrial automation and control systems.
- Medical devices requiring precise and efficient analog-to-digital conversion.
Q & A
- What is the resolution of the MAX189CCWE+ ADC?
The MAX189CCWE+ has a 12-bit resolution. - What is the typical supply current of the MAX189CCWE+ in operating mode?
The typical supply current is between 1.0 to 2.0 mA. - What is the power consumption in shutdown mode?
The power consumption in shutdown mode is 2 to 10 µA. - What types of serial interfaces are supported by the MAX189CCWE+?
The MAX189CCWE+ supports SPI, QSPI, and MICROWIRE serial interfaces. - What is the maximum sampling rate of the MAX189CCWE+?
The maximum sampling rate is 75 kHz. - Does the MAX189CCWE+ require an external reference voltage?
Yes, the MAX189CCWE+ requires an external reference voltage. - What is the typical conversion time of the MAX189CCWE+?
The typical conversion time is between 5.5 to 8.5 µs. - What is the track/hold acquisition time of the MAX189CCWE+?
The track/hold acquisition time is 1.5 µs. - In what package types is the MAX189CCWE+ available?
The MAX189CCWE+ is available in 16-SOIC packages. - What are some common applications of the MAX189CCWE+?
Common applications include remote DSP and sensor systems, data acquisition systems, and industrial automation.
