Overview
The MAX1231BCTI+ is a 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1227/MAX1229/MAX1231 family, which features serial 12-bit ADCs with an internal reference and an internal temperature sensor. The MAX1231BCTI+ is designed for high-performance data acquisition and is particularly suited for applications requiring multiple input channels and precise temperature sensing.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12-bit | |
| Sampling Rate | 300 kS/s | |
| Input Type | Differential/Single-Ended | |
| Architecture | SAR (Successive Approximation Register) | |
| Signal-to-Noise Ratio (SNR) | 70 dB | |
| Total Harmonic Distortion (THD) | -80 dBc (up to the 5th harmonic) | |
| Spurious-Free Dynamic Range (SFDR) | 81 dBc | |
| Full-Power Bandwidth | -3dB point at 1 MHz | |
| Supply Voltage (Analog/Digital) | 2.7V to 3.6V | V |
| Operating Temperature | -40°C to +85°C | °C |
| Package | 28-pin 5mm x 5mm TQFN with exposed pad, 24-pin QSOP |
Key Features
- Internal temperature sensor with ±0.7°C accuracy
- 16-entry First-In/First-Out (FIFO) buffer
- Analog multiplexer with true differential track and hold
- Configurable for single-ended or differential inputs in unipolar or bipolar mode
- Internal clock mode, scan mode, internal averaging, and AutoShutdown™
- 10MHz SPI™/QSPI™/MICROWIRE™-compatible serial port
- Low power consumption
Applications
The MAX1231BCTI+ is suitable for a variety of applications, including temperature control, process control, and monitoring. It is also used in data acquisition systems, industrial automation, medical devices, and any application requiring precise analog-to-digital conversion and temperature sensing.
Q & A
- What is the resolution of the MAX1231BCTI+ ADC?
The MAX1231BCTI+ has a 12-bit resolution. - What is the maximum sampling rate of the MAX1231BCTI+?
The maximum sampling rate is 300 kS/s using an external clock. - What types of input channels does the MAX1231BCTI+ support?
The device supports both single-ended and differential input channels, configurable in unipolar or bipolar mode. - What is the accuracy of the internal temperature sensor?
The internal temperature sensor has an accuracy of ±0.7°C. - What is the operating temperature range of the MAX1231BCTI+?
The device operates over an extended temperature range of -40°C to +85°C. - What communication interface does the MAX1231BCTI+ use?
The device uses a 10MHz SPI™/QSPI™/MICROWIRE™-compatible serial port. - What are the available package options for the MAX1231BCTI+?
The device is available in 28-pin 5mm x 5mm TQFN with exposed pad and 24-pin QSOP packages. - What is the supply voltage range for the MAX1231BCTI+?
The supply voltage range is 2.7V to 3.6V for both analog and digital supplies. - Does the MAX1231BCTI+ have any power-saving features?
Yes, it features AutoShutdown™ to reduce power consumption when not in use. - How many input channels does the MAX1231BCTI+ have?
The MAX1231BCTI+ has 16 input channels.
