Overview
The MAX145AEUA+T is a low-power, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX145 series and is available in an 8-pin µMAX package. It is designed for applications requiring high performance, low power consumption, and compact size. The MAX145AEUA+T operates with a single supply voltage ranging from +2.7V to +5.25V and features a successive-approximation ADC with an internal track/hold circuit. Its high-speed, 3-wire serial interface is compatible with SPI, QSPI, and MICROWIRE protocols, making it versatile for various data acquisition and battery-powered systems.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Converters | 1 Converter |
| Resolution | 12 bits |
| Sampling Rate | Up to 108ksps |
| Supply Voltage | +2.7V to +5.25V |
| Power Consumption | 0.9mA (108ksps, +3V Supply), 0.2µA (Power-Down Mode) |
| Input Channels | One Pseudo-Differential Channel |
| Operating Temperature | -40°C to +85°C |
| Package Type | 8-pin µMAX |
| Power Dissipation | 727 mW (Plastic DIP at TA = +70°C) |
| Storage Temperature Range | -65°C to +150°C |
Key Features
- Single-supply operation (+2.7V to +5.25V)
- One pseudo-differential input channel
- Low power consumption: 0.9mA (108ksps, +3V Supply), 0.2µA (Power-Down Mode)
- Internal track/hold circuit
- High-speed, 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE
- Fast wake-up time (2.5µs) and automatic power-down
- Space-saving 8-pin µMAX package
Applications
The MAX145AEUA+T is ideal for battery-powered and data-acquisition applications due to its low power consumption and compact size. It is also suitable for other circuits with demanding power-consumption and space requirements. Typical applications include portable medical devices, industrial control systems, and any system requiring precise analog-to-digital conversion with minimal power usage.
Q & A
- What is the resolution of the MAX145AEUA+T ADC?
The MAX145AEUA+T has a resolution of 12 bits. - What is the sampling rate of the MAX145AEUA+T?
The sampling rate can go up to 108ksps. - What is the supply voltage range for the MAX145AEUA+T?
The supply voltage range is from +2.7V to +5.25V. - How many input channels does the MAX145AEUA+T have?
The MAX145AEUA+T has one pseudo-differential input channel. - What is the power consumption of the MAX145AEUA+T at 108ksps?
The power consumption is 0.9mA at 108ksps with a +3V supply. - What is the power-down mode current of the MAX145AEUA+T?
The power-down mode current is 0.2µA. - What is the operating temperature range of the MAX145AEUA+T?
The operating temperature range is -40°C to +85°C. - What type of serial interface does the MAX145AEUA+T use?
The MAX145AEUA+T uses a high-speed, 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE. - What is the package type of the MAX145AEUA+T?
The package type is an 8-pin µMAX. - What are typical applications for the MAX145AEUA+T?
Typical applications include battery-powered devices, data-acquisition systems, portable medical devices, and industrial control systems.
