Overview
The MAX189ACPA+ is a +5V, 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 and is designed for applications where low power consumption and high accuracy are crucial. It operates from a single +5V supply and accepts a 0 to 5V analog input, making it suitable for a variety of data acquisition and sensor applications.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Resolution | - | - | - | - | 12 bits | - |
| Integral Nonlinearity | - | - | - | - | ±½ LSB | - |
| Supply Voltage | VDD | - | 4.75 | 5.0 | 5.25 | V |
| Supply Current (Operating) | IDD | - | 1.0 | - | 2.0 | mA |
| Supply Current (Power-down) | IDD | - | - | - | 10 | nA |
| Conversion Time | tCONV | - | - | 8.5 | - | Fs |
| Track/Hold Acquisition Time | tACQ | - | - | 1.5 | - | Fs |
| Throughput Rate | - | - | - | - | 75 ksps | - |
| Full-Power Bandwidth | - | - | - | - | 0.8 MHz | - |
Key Features
- 12-bit resolution with ±½ LSB integral nonlinearity (MAX189A)
- Internal track/hold with a 75kHz sampling rate
- Single +5V operation
- Low power consumption: 7.5mW in operating mode and 10nA in power-down mode
- High-speed 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE
- Requires an external reference voltage (VREF = 4.096V)
- Available in 8-pin PDIP and 16-pin SO packages
- Excellent AC characteristics, including -80 dB THD and 80 dB SFDR
Applications
- Remote DSP and sensor applications
- Circuits where power consumption and space are crucial
- Data acquisition systems
- Industrial control and automation
- Medical devices requiring high accuracy and low power consumption
Q & A
- What is the resolution of the MAX189ACPA+ ADC?
The MAX189ACPA+ has a 12-bit resolution
- What is the supply voltage range for the MAX189ACPA+?
The supply voltage range is from 4.75V to 5.25V
- What is the typical power consumption of the MAX189ACPA+ in operating mode?
The typical power consumption is 7.5mW
- Does the MAX189ACPA+ require an external reference voltage?
Yes, it requires an external reference voltage (VREF = 4.096V)
- What is the throughput rate of the MAX189ACPA+?
The throughput rate is 75 ksps
- What are the available package types for the MAX189ACPA+?
It is available in 8-pin PDIP and 16-pin SO packages
- What is the full-power bandwidth of the MAX189ACPA+?
The full-power bandwidth is 0.8 MHz
- Is the MAX189ACPA+ compatible with any specific serial interfaces?
Yes, it is compatible with SPI, QSPI, and MICROWIRE
- What is the power consumption in power-down mode?
The power consumption in power-down mode is 10nA
- What are some typical applications for the MAX189ACPA+?
Typical applications include remote DSP and sensor applications, and circuits where power consumption and space are crucial
