Overview
The MAX1203BEAP+ is a 12-bit, 8-channel serial analog-to-digital converter (ADC) designed by Analog Devices Inc./Maxim Integrated. This component is part of the MAX1202/MAX1203 family, which is specifically tailored for applications requiring mixed +5V (analog) and +3V (digital) supply voltages. The MAX1203BEAP+ integrates an 8-channel multiplexer, a high-bandwidth track/hold circuit, and a serial interface, making it suitable for high-speed data acquisition systems.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12 bits |
| Number of Channels | 8 |
| Supply Voltage (Analog) | Single +5V or dual ±5V |
| Operating Temperature | -40°C to +85°C |
| Package Type | 20-SSOP |
| Sampling Rate | Up to 133 kSPS |
| Serial Interface Speed | Up to 2 MHz |
| Reference Voltage | External reference required |
| Power Consumption (Operating Mode) | 1.5 mA |
| Power Consumption (Power-Down Mode) | 2 μA |
| Signal-to-Noise Plus Distortion Ratio (SINAD) | 70 dB |
| Total Harmonic Distortion (THD) | -80 dB |
| Spurious-Free Dynamic Range (SFDR) | 80 dB |
Key Features
- High-speed successive approximation ADC with up to 133 kSPS sampling rate.
- 8-channel multiplexer with software-configurable unipolar/bipolar inputs.
- High-bandwidth track/hold circuit.
- SPI/MICROWIRE/TMS320-compatible 4-wire serial interface operating up to 2 MHz.
- External reference voltage required, with a reference-buffer amplifier for gain trim.
- Low power consumption: 1.5 mA in operating mode and 2 μA in power-down mode.
- VL pin for digital output power supply, supporting various logic levels (3V, 3.3V, etc.).
Applications
- Data acquisition systems in industrial, medical, and automotive applications.
- Embedded systems requiring high-speed analog-to-digital conversion.
- Systems with mixed-voltage supply requirements (+5V analog and +3V digital).
- Applications needing high accuracy and low power consumption, such as battery-powered devices.
Q & A
- What is the resolution of the MAX1203BEAP+ ADC?
The MAX1203BEAP+ has a resolution of 12 bits.
- How many channels does the MAX1203BEAP+ support?
The MAX1203BEAP+ supports 8 channels.
- What are the supply voltage options for the MAX1203BEAP+?
The MAX1203BEAP+ can operate with a single +5V or dual ±5V analog supply.
- What is the maximum sampling rate of the MAX1203BEAP+?
The MAX1203BEAP+ has a maximum sampling rate of up to 133 kSPS.
- Does the MAX1203BEAP+ require an external reference voltage?
- What is the power consumption of the MAX1203BEAP+ in operating mode?
The power consumption in operating mode is 1.5 mA.
- What is the power consumption of the MAX1203BEAP+ in power-down mode?
The power consumption in power-down mode is 2 μA.
- What is the serial interface speed of the MAX1203BEAP+?
The serial interface operates up to 2 MHz.
- Is the MAX1203BEAP+ compatible with SPI/MICROWIRE/TMS320 interfaces?
- What is the operating temperature range of the MAX1203BEAP+?
The operating temperature range is -40°C to +85°C.
