Overview
The MAX1203BEPP+ is a 12-bit data-acquisition system designed for applications with mixed +5V (analog) and +3V (digital) supply voltages. This component is part of the MAX1202/MAX1203 series from Maxim Integrated, now a part of Analog Devices Inc. It combines an 8-channel multiplexer, high-bandwidth track/hold circuitry, and a serial interface, making it suitable for a variety of data acquisition tasks. The MAX1203BEPP+ operates with a single +5V analog supply or dual ±5V analog supplies and features low power consumption and high conversion speed.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12-bit | |
| Number of Channels | 8 | |
| Analog Supply Voltage | +5V ±5% or ±5V ±5% | V |
| Digital Supply Voltage | 2.7V to 3.6V | V |
| Conversion Rate | Up to 133ksps | samples per second |
| Serial Interface Clock Speed | Up to 2MHz | Hz |
| Operating Temperature Range | 0°C to +70°C (MAX1203_C_P), -40°C to +85°C (MAX1203_E_P) | °C |
| Power Consumption (Operating Mode) | 1.5mA to 2.5mA | mA |
| Power Consumption (Power-Down Mode) | 2µA | µA |
| Package Type | 20-Pin PDIP or SSOP |
Key Features
- Internal track/hold circuitry with a 5.5µs acquisition time.
- Software-configurable unipolar/bipolar inputs.
- SPI/MICROWIRE/TMS320-compatible 4-wire serial interface.
- Requires an external reference voltage (VREF = 4.096V) for the MAX1203.
- Reference-buffer amplifier for simplified gain trim.
- Low power consumption with fast power-down mode.
- VL pin for digital output power supply.
- Compatible with 3V microprocessors.
Applications
- Data acquisition systems in industrial and medical devices.
- Automotive systems requiring mixed voltage supplies.
- Embedded systems needing high-speed, low-power ADCs.
- Test and measurement equipment.
- Industrial control systems.
Q & A
- What is the resolution of the MAX1203BEPP+ ADC?
The MAX1203BEPP+ has a 12-bit resolution.
- How many channels does the MAX1203BEPP+ support?
The MAX1203BEPP+ supports 8 channels.
- What are the operating temperature ranges for the MAX1203BEPP+?
The operating temperature ranges are 0°C to +70°C (MAX1203_C_P) and -40°C to +85°C (MAX1203_E_P).
- What is the maximum serial interface clock speed for the MAX1203BEPP+?
The maximum serial interface clock speed is up to 2MHz.
- Does the MAX1203BEPP+ require an external reference voltage?
- What are the power consumption levels for the MAX1203BEPP+ in operating and power-down modes?
In operating mode, it consumes 1.5mA to 2.5mA, and in power-down mode, it consumes 2µA.
- What types of packages are available for the MAX1203BEPP+?
The MAX1203BEPP+ is available in 20-Pin PDIP and SSOP packages.
- Is the MAX1203BEPP+ compatible with 3V microprocessors?
- What is the conversion rate of the MAX1203BEPP+?
The conversion rate is up to 133ksps.
- Does the MAX1203BEPP+ support both unipolar and bipolar inputs?
