Overview
The MAX1203ACAP+ is a 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This component is part of the MAX1202/MAX1203 family, designed for use in applications requiring mixed +5V (analog) and +3V (digital) supply voltages. It combines an 8-channel multiplexer, high-bandwidth track/hold circuitry, and a serial interface, making it suitable for a variety of data-acquisition systems.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Conversion Time | Internal clock | 5.5 | 10 | - | µs |
| Conversion Time | External clock, 2MHz, 12 clocks/conversion | 6 | - | - | µs |
| Track/Hold Acquisition Time | - | 1.5 | - | - | µs |
| Aperture Delay | - | - | 10 | - | ns |
| Aperture Jitter | - | - | < 50 | - | ps |
| Internal Clock Frequency | - | 1.7 | - | - | MHz |
| External Clock Frequency Range | - | 0.1 | - | 2.0 | MHz |
| Analog Input Voltage Range | Single-ended and differential | - | - | - | V |
| Power Dissipation | - | - | - | 640 | mW |
| Reference Voltage | External | - | - | 4.096 | V |
| Output Logic Levels | - | 2.7 | - | 5.25 | V |
Key Features
- 12-bit resolution with no missing codes over temperature.
- Operates with a single +5V analog supply or dual ±5V analog supplies.
- 8-channel multiplexer with high-bandwidth track/hold circuitry.
- Serial interface compatible with SPI/MICROWIRE devices, operating up to 2MHz.
- User-adjustable output logic levels (2.7V to 5.25V).
- External reference required for MAX1203, with a reference-buffer amplifier for gain trim.
- Low power consumption.
Applications
The MAX1203ACAP+ is suitable for various data-acquisition systems, particularly in applications that require mixed voltage supplies. It is ideal for use in industrial control systems, medical devices, automotive systems, and any environment where high-speed, low-power analog-to-digital conversion is necessary.
Q & A
- What is the resolution of the MAX1203ACAP+ ADC?
The MAX1203ACAP+ has a 12-bit resolution. - What are the possible supply voltages for the MAX1203ACAP+?
The MAX1203ACAP+ can operate with a single +5V analog supply or dual ±5V analog supplies. - How many channels does the MAX1203ACAP+ multiplexer support?
The MAX1203ACAP+ supports an 8-channel multiplexer. - What is the maximum serial interface speed of the MAX1203ACAP+?
The serial interface operates up to 2MHz. - Does the MAX1203ACAP+ require an external reference voltage?
Yes, the MAX1203ACAP+ requires an external reference voltage. - What is the typical conversion time using the internal clock?
The typical conversion time using the internal clock is 10µs. - Can the MAX1203ACAP+ be used with 3V microprocessors?
Yes, the MAX1203ACAP+ has a flexible serial interface that is compatible with 3V microprocessors. - What is the power dissipation of the MAX1203ACAP+?
The power dissipation is 640mW. - What are the output logic levels adjustable to?
The output logic levels are adjustable from 2.7V to 5.25V. - Is the MAX1203ACAP+ suitable for high-speed applications?
Yes, the MAX1203ACAP+ is designed for high-speed applications with low power consumption.
