Overview
The MAX1087EKA-T is a low-cost, micropower, 10-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1086–MAX1089 series and is specifically designed for single +3V supply operation. It features a successive-approximation ADC architecture and is available in an 8-pin SOT23 package, making it highly suitable for space-constrained applications. The MAX1087EKA-T supports true-differential analog inputs and offers high-speed 3-wire interface compatibility with SPI, QSPI, and other microprocessors.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 10-bit |
| Supply Voltage | Single +3V |
| Input Type | True-Differential |
| Sampling Rate | Up to 150ksps |
| Power Consumption | 0.5mW (VDD = +2.7V) |
| AutoShutdown Current | 0.1µA |
| Wake-Up Time | 1.4µs |
| Interface | 3-wire SPI, QSPI |
| Package Type | 8-pin SOT23 |
| Internal Clock Accuracy | Within 10% of 4MHz specified clock rate |
Key Features
- Successive-approximation ADC architecture
- True-differential analog input capability
- High-speed 3-wire interface (SPI, QSPI)
- Automatic shutdown and fast wake-up (1.4µs)
- Internal protection diodes for analog input protection
- Internal oscillator accurate within 10% of the 4MHz specified clock rate
- Low power consumption (0.5mW at maximum sampling rate)
Applications
The MAX1087EKA-T is suitable for a variety of applications requiring low power consumption and high precision analog-to-digital conversion. These include battery-powered devices, medical equipment, industrial control systems, and any application where space and power efficiency are critical. The true-differential input capability makes it particularly useful in noise-prone environments where differential signaling can help improve signal integrity.
Q & A
- What is the resolution of the MAX1087EKA-T ADC?
The MAX1087EKA-T has a 10-bit resolution. - What is the supply voltage for the MAX1087EKA-T?
The MAX1087EKA-T operates with a single +3V supply. - What type of analog input does the MAX1087EKA-T support?
The MAX1087EKA-T supports true-differential analog inputs. - What is the maximum sampling rate of the MAX1087EKA-T?
The maximum sampling rate is up to 150ksps. - How much power does the MAX1087EKA-T consume at maximum sampling rate?
The power consumption is 0.5mW at VDD = +2.7V. - What is the wake-up time for the MAX1087EKA-T from AutoShutdown mode?
The wake-up time is 1.4µs. - What type of interface does the MAX1087EKA-T use?
The MAX1087EKA-T uses a 3-wire SPI, QSPI interface. - What is the package type of the MAX1087EKA-T?
The package type is 8-pin SOT23. - Does the MAX1087EKA-T have internal protection for analog inputs?
Yes, the MAX1087EKA-T has internal protection diodes for analog input protection. - What is the accuracy of the internal clock in the MAX1087EKA-T?
The internal clock is accurate within 10% of the 4MHz specified clock rate.
