Overview
The MAX1089EKA-T 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 an 8-pin SOT23 package. It operates with a single +3V supply, making it suitable for power-sensitive applications. The MAX1089EKA-T features a successive-approximation ADC with automatic shutdown, fast wake-up, and a high-speed 3-wire interface, which includes SPI, QSPI, and microprocessor-compatible modes.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 10 |
| Number of Channels | 1 (True-Differential) |
| Supply Voltage | +3V |
| Sampling Rate | Up to 150ksps |
| Power Consumption | 0.5mW (VDD = +2.7V) at maximum sampling rate |
| AutoShutdown Current | 0.1µA |
| Wake-Up Time | 1.4µs |
| Input Range | 0 to VREF |
| Package | 8-pin SOT23 |
| Internal Clock Accuracy | Within 10% of 4MHz specified clock rate |
Key Features
- Successive-approximation ADC architecture
- Automatic shutdown and fast wake-up (1.4µs)
- High-speed 3-wire interface (SPI, QSPI, and microprocessor-compatible modes)
- True-differential analog input
- Internal protection diodes for analog input pins
- Internal oscillator with accuracy within 10% of 4MHz specified clock rate
Applications
The MAX1089EKA-T is suitable for a variety of applications where low power consumption and high accuracy are required. These include battery-powered devices, medical equipment, industrial control systems, and portable consumer electronics. Its true-differential input capability makes it particularly useful in noise-prone environments.
Q & A
- What is the resolution of the MAX1089EKA-T ADC?
The MAX1089EKA-T has a resolution of 10 bits. - What is the maximum sampling rate of the MAX1089EKA-T?
The maximum sampling rate is up to 150ksps. - What is the supply voltage for the MAX1089EKA-T?
The MAX1089EKA-T operates with a single +3V supply. - What type of analog input does the MAX1089EKA-T support?
The MAX1089EKA-T supports true-differential analog inputs. - How much power does the MAX1089EKA-T consume at maximum sampling rate?
The power consumption is 0.5mW at the maximum sampling rate (VDD = +2.7V). - What is the wake-up time for the MAX1089EKA-T?
The wake-up time is 1.4µs. - Does the MAX1089EKA-T have internal protection for analog input pins?
Yes, the MAX1089EKA-T has internal protection diodes for the analog input pins. - What is the package type for the MAX1089EKA-T?
The MAX1089EKA-T is available in an 8-pin SOT23 package. - Is the MAX1089EKA-T suitable for battery-powered devices?
Yes, due to its low power consumption, it is suitable for battery-powered devices. - What interface modes does the MAX1089EKA-T support?
The MAX1089EKA-T supports SPI, QSPI, and microprocessor-compatible modes.
