Overview
The MAX1109EUB+T is a low-power, 8-bit, dual-channel analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1108/MAX1109 series, known for their high efficiency and versatility. The MAX1109 operates within a voltage range of +4.5V to +5.5V and consumes only 130µA, making it an ideal choice for power-sensitive applications. It features an internal track/hold (T/H) voltage reference, clock, and a 4-wire serial interface compatible with SPI, QSPI, and MICROWIRE devices without the need for external logic.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Voltage Supply Range | +4.5V to +5.5V | |
| Power Consumption | 130µA | Active mode |
| Resolution | 8-bit | |
| Number of Channels | 2 | Dual-channel |
| Conversion Rate | Up to 50ksps | Using internal or external clock |
| Internal Reference Voltage | +4.096V | Or externally applied reference from 1V to VDD |
| Operating Temperature Range | -40°C to +85°C | |
| Package Type | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) | |
| Power-Down Mode | 0.5µA | When device is not in use |
Key Features
- Software-configurable analog inputs for unipolar/bipolar and single-ended/differential operation.
- Battery monitoring capability.
- Internal track/hold (T/H) voltage reference and clock.
- 4-wire serial interface compatible with SPI, QSPI, and MICROWIRE devices.
- No external hold capacitors required.
- Software power-down mode to reduce power consumption to 0.5µA when not in use.
- Compact 10-pin µMAX package with a footprint 20% of an 8-pin plastic DIP.
Applications
- Battery monitoring and management systems.
- Industrial control and automation.
- Medical devices requiring low power and high accuracy.
- Portable and handheld devices.
- Automotive systems, especially those requiring low power consumption.
Q & A
- What is the voltage supply range for the MAX1109EUB+T?
The MAX1109EUB+T operates within a voltage range of +4.5V to +5.5V.
- How much power does the MAX1109EUB+T consume in active mode?
The device consumes 130µA in active mode.
- What is the resolution of the MAX1109EUB+T ADC?
The MAX1109EUB+T has an 8-bit resolution.
- How many channels does the MAX1109EUB+T support?
The device supports two channels.
- What is the maximum conversion rate of the MAX1109EUB+T?
The device can perform conversions up to 50ksps using either the internal clock or an external serial-interface clock.
- What is the internal reference voltage of the MAX1109EUB+T?
The internal reference voltage is +4.096V, or an externally applied reference ranging from 1V to VDD.
- What is the operating temperature range of the MAX1109EUB+T?
The device operates over a temperature range of -40°C to +85°C.
- What package types are available for the MAX1109EUB+T?
The device is available in 10-TFSOP and 10-MSOP packages.
- How much power does the MAX1109EUB+T consume in power-down mode?
In power-down mode, the device consumes 0.5µA.
- Is the MAX1109EUB+T compatible with SPI, QSPI, and MICROWIRE devices?
Yes, the device has a 4-wire serial interface compatible with SPI, QSPI, and MICROWIRE devices without the need for external logic.
