Overview
The MAX1203ACPP is a 12-bit, 8-channel serial analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is designed for applications requiring high conversion speed, low power consumption, and compatibility with mixed supply voltages. It operates with either a single +5V analog supply or dual ±5V analog supplies, making it versatile for various system configurations.
The MAX1203ACPP combines an 8-channel multiplexer, a high-bandwidth track/hold circuit, and a serial interface compatible with SPI, MICROWIRE, and TMS320-family digital signal processors. This ADC is particularly suited for systems that require precise analog-to-digital conversion with minimal external components.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Resolution | 12 | bits | |||
| Supply Voltage | +5V (single), ±5V (dual) | V | |||
| Conversion Time | Internal clock | 5.5 | 10 | µs | |
| Conversion Time | External clock, 2MHz | 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 | ||
| Input Voltage Range | Single-Ended and Differential | V | |||
| Power Consumption (Operating Mode) | 1.5 | mA | |||
| Power Consumption (Power-Down Mode) | 2 | µA |
Key Features
- High Conversion Speed: The MAX1203ACPP can perform successive approximation analog-to-digital conversions at speeds up to 133ksps with an external clock frequency of 2MHz.
- Serial Interface: It features a 4-wire serial interface compatible with SPI, MICROWIRE, and TMS320-family digital signal processors, allowing direct connection without external logic.
- Internal Track/Hold: Includes a high-bandwidth track/hold circuit with an acquisition time of 1.5µs and an aperture delay of 10ns.
- Reference Configuration: Requires an external reference voltage, which can be simplified using the on-chip reference-buffer amplifier.
- Low Power Consumption: Operates with low power consumption, drawing 1.5mA in operating mode and 2µA in power-down mode.
- Software-Configurable Inputs: Supports software-configurable unipolar and bipolar inputs, enhancing flexibility in various applications.
Applications
- Data Acquisition Systems: Ideal for data acquisition systems that require multiple channels and high conversion speeds.
- Industrial Automation: Suitable for industrial automation applications where precise and fast analog-to-digital conversion is necessary.
- Medical Devices: Can be used in medical devices that require accurate and reliable analog-to-digital conversion.
- Aerospace and Defense: Applicable in aerospace and defense systems where high precision and reliability are critical.
- Automotive Systems: Useful in automotive systems that require robust and high-speed analog-to-digital conversion.
Q & A
- What is the resolution of the MAX1203ACPP ADC?
The MAX1203ACPP has a resolution of 12 bits.
- What are the supply voltage options for the MAX1203ACPP?
The MAX1203ACPP can operate with either a single +5V analog supply or dual ±5V analog supplies.
- What is the maximum conversion rate of the MAX1203ACPP?
The MAX1203ACPP can achieve a conversion rate of up to 133ksps with an external clock frequency of 2MHz.
- Does the MAX1203ACPP have an internal reference voltage?
No, the MAX1203ACPP requires an external reference voltage.
- What type of serial interface does the MAX1203ACPP support?
The MAX1203ACPP supports a 4-wire serial interface compatible with SPI, MICROWIRE, and TMS320-family digital signal processors.
- What is the power consumption of the MAX1203ACPP in operating mode?
The MAX1203ACPP consumes 1.5mA in operating mode.
- What is the power consumption of the MAX1203ACPP in power-down mode?
The MAX1203ACPP consumes 2µA in power-down mode.
- What is the track/hold acquisition time of the MAX1203ACPP?
The track/hold acquisition time of the MAX1203ACPP is 1.5µs.
- Is the MAX1203ACPP compatible with TTL/CMOS logic levels?
Yes, the MAX1203ACPP is compatible with TTL/CMOS logic levels.
- What are some typical applications of the MAX1203ACPP?
The MAX1203ACPP is typically used in data acquisition systems, industrial automation, medical devices, aerospace and defense systems, and automotive systems.
