Overview
The MAX149ACAP+T is a 10-bit data-acquisition system produced by Analog Devices Inc./Maxim Integrated. This component integrates an 8-channel multiplexer, a high-bandwidth track/hold circuit, and a serial interface, making it suitable for a variety of data acquisition applications. It operates from a single supply voltage ranging from +2.7V to +5.25V and supports high conversion speeds up to 133ksps. The device is designed for low power consumption and features software-configurable analog inputs for unipolar/bipolar and single-ended/differential operation.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | +2.7V to +5.25V |
| Number of Channels | 8 (single-ended), 4 (differential) |
| Resolution | 10-bit |
| Conversion Rate | Up to 133ksps |
| Input Type | Single-ended, differential |
| Data Interface | SPI, QSPI, MICROWIRE |
| Operating Temperature Range | 0°C to +70°C (MAX149_C_P), -40°C to +85°C (MAX149_E_P), -55°C to +125°C (MAX149BMAP) |
| Power Consumption | Low power, < 60µA at reduced sampling rates |
| Package Type | 20-pin SSOP |
Key Features
- Software-configurable analog inputs for unipolar/bipolar and single-ended/differential operation
- High-bandwidth track/hold circuit
- 4-wire serial interface compatible with SPI, QSPI, and MICROWIRE devices
- Internal 2.5V reference (MAX149) or external reference option
- Reference-buffer amplifier with ±1.5% voltage-adjustment range
- Hard-wired active-low SHDN pin and software-selectable power-down
- Automatic shutdown at the end of a conversion
- Quick turn-on time for power management
Applications
- Data acquisition systems
- Industrial control systems
- Medical devices requiring high-speed and low-power ADCs
- Aerospace and defense applications where low power and high accuracy are critical
- Automotive systems needing robust and reliable data conversion
Q & A
- What is the supply voltage range for the MAX149ACAP+T? The supply voltage range is +2.7V to +5.25V.
- How many channels does the MAX149ACAP+T support? It supports 8 single-ended or 4 differential channels.
- What is the resolution of the MAX149ACAP+T? The resolution is 10-bit.
- What is the maximum conversion rate of the MAX149ACAP+T? The maximum conversion rate is up to 133ksps.
- What types of input configurations are supported by the MAX149ACAP+T? It supports both single-ended and differential input configurations.
- What data interfaces are compatible with the MAX149ACAP+T? It is compatible with SPI, QSPI, and MICROWIRE interfaces.
- What is the operating temperature range for the MAX149ACAP+T? The operating temperature range varies by model but includes 0°C to +70°C, -40°C to +85°C, and -55°C to +125°C.
- How does the MAX149ACAP+T manage power consumption? It features low power consumption and can be powered down between conversions to reduce supply current to under 60µA at reduced sampling rates.
- What package types are available for the MAX149ACAP+T? It is available in a 20-pin SSOP package.
- Does the MAX149ACAP+T have an internal reference voltage? Yes, the MAX149 has an internal 2.5V reference, while the MAX148 requires an external reference.
