Overview
The MAX1089EKA is a low-cost, micropower, serial output 10-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1086–MAX1089 family and is available in a compact 8-pin SOT23 package. It operates with a single +3V supply, making it suitable for a variety of low-power applications. The MAX1089EKA features a successive-approximation ADC, automatic shutdown, and a high-speed 3-wire interface, which includes SPI, QSPI, and other serial interfaces. This ADC is designed for efficient power consumption and fast wake-up times, making it ideal for battery-powered devices and other power-sensitive applications.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 10 |
| Number of Channels | 1 (True-Differential) |
| Supply Voltage | +2.7V to +3.6V |
| Sampling Rate | Up to 150 ksps |
| Power Consumption | 0.5 mW (VDD = +2.7V) at maximum sampling rate |
| AutoShutdown Current | 0.1 µA |
| Wake-Up Time | 1.4 µs |
| Interface | 3-wire SPI, QSPI |
| Package | SOT23-8 |
| Analog Input Range | 0 to VREF |
Key Features
- Successive-approximation ADC architecture
- Automatic shutdown and fast wake-up (1.4 µs)
- High-speed 3-wire interface (SPI, QSPI)
- True-differential analog input
- Internal protection diodes to prevent input voltage exceeding VDD or below GND
- Low power consumption with 0.5 mW at maximum sampling rate
- Compact SOT23-8 package
Applications
- Battery-powered devices
- Portable medical devices
- Industrial control systems
- Automotive systems
- Consumer electronics requiring low power consumption
Q & A
- What is the resolution of the MAX1089EKA ADC?
The MAX1089EKA has a resolution of 10 bits. - What is the supply voltage range for the MAX1089EKA?
The supply voltage range is from +2.7V to +3.6V. - How many channels does the MAX1089EKA support?
The MAX1089EKA supports one true-differential channel. - What is the maximum sampling rate of the MAX1089EKA?
The maximum sampling rate is up to 150 ksps. - What is the power consumption of the MAX1089EKA at maximum sampling rate?
The power consumption is 0.5 mW at VDD = +2.7V. - What is the wake-up time of the MAX1089EKA from shutdown?
The wake-up time is 1.4 µs. - What type of interface does the MAX1089EKA use?
The MAX1089EKA uses a 3-wire SPI, QSPI interface. - What is the package type of the MAX1089EKA?
The package type is SOT23-8. - What is the analog input range of the MAX1089EKA?
The analog input range is from 0 to VREF. - Does the MAX1089EKA have internal protection for the analog inputs?
Yes, the MAX1089EKA has internal protection diodes to prevent input voltage from exceeding VDD or going below GND.
