Overview
The MAX146BCAP+T is a 12-bit data-acquisition system produced by Analog Devices Inc./Maxim Integrated. This device combines an 8-channel multiplexer, high-bandwidth track/hold, and a serial interface, offering high conversion speed and low power consumption. It operates from a single +2.7V to +3.6V supply and features an internal 2.5V reference voltage. The MAX146BCAP+T is designed for various applications requiring precise analog-to-digital conversion and efficient power management.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Number of Channels | 8 (single-ended) or 4 (differential) |
| Supply Voltage | +2.7V to +3.6V |
| Internal Reference Voltage | 2.5V |
| Conversion Time | 6 µs (typical) |
| Full-Power Bandwidth | 1.0 MHz |
| Small-Signal Bandwidth | 2.25 MHz |
| Channel-to-Channel Crosstalk | -85 dB |
| Operating Temperature Range | 0°C to +70°C |
| Package Type | 20-SSOP (0.209", 5.30mm Width) |
| Mounting Type | Surface Mount |
Key Features
- Single-supply operation: +2.7V to +3.6V
- Internal 2.5V reference voltage
- 8-channel multiplexer with software-configurable unipolar/bipolar and single-ended/differential operation
- High-bandwidth track/hold and serial interface compatible with SPI, QSPI, and MICROWIRE devices
- Low power consumption with automatic shutdown at the end of conversion
- Quick turn-on time and low supply current in power-down mode (under 60µA at reduced sampling rates)
- Reference-buffer amplifier with ±1.5% voltage-adjustment range
Applications
- Data acquisition systems
- Industrial control and automation
- Medical devices requiring precise analog-to-digital conversion
- Embedded systems and IoT devices
- Automotive and aerospace applications where low power and high accuracy are crucial
Q & A
- What is the resolution of the MAX146BCAP+T?
The MAX146BCAP+T has a resolution of 12 bits.
- What is the operating voltage range of the MAX146BCAP+T?
The device operates from a single +2.7V to +3.6V supply.
- Does the MAX146BCAP+T have an internal reference voltage?
Yes, the MAX146BCAP+T has an internal 2.5V reference voltage.
- How many channels does the MAX146BCAP+T support?
The device supports 8 single-ended or 4 differential channels.
- What is the typical conversion time of the MAX146BCAP+T?
The typical conversion time is 6 µs.
- Is the MAX146BCAP+T compatible with SPI and QSPI interfaces?
Yes, it is compatible with SPI, QSPI, and MICROWIRE devices without external logic.
- How does the MAX146BCAP+T manage power consumption?
The device has automatic shutdown at the end of conversion and can be programmed to reduce supply current to under 60µA at reduced sampling rates.
- What is the operating temperature range of the MAX146BCAP+T?
The operating temperature range is 0°C to +70°C.
- In what package type is the MAX146BCAP+T available?
The device is available in a 20-SSOP package.
- What are some common applications of the MAX146BCAP+T?
Common applications include data acquisition systems, industrial control, medical devices, embedded systems, and automotive and aerospace applications.
