Overview
The MAX1202BCPP+ is a 12-bit, 8-channel analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is specifically designed for applications that require mixed +5V (analog) and +3V (digital) supply voltages. It combines an 8-channel multiplexer, high-bandwidth track/hold, and a serial interface, making it ideal for high-speed data acquisition with low power consumption.
The MAX1202BCPP+ operates with a single +5V analog supply or dual ±5V analog supplies and features an internal 4.096V reference voltage. It supports direct connection to SPI/MICROWIRE® devices and TMS320-family digital signal processors through a 4-wire serial interface.
Key Specifications
| Parameter | Symbol | Conditions | Min | Max | Units | |
|---|---|---|---|---|---|---|
| Conversion Rate | tCONV | Internal clock | 5.5 | 10 | - | µs |
| Track/Hold Acquisition Time | tACQ | - | 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 Supply for Digital Outputs | VL | - | 2.7 | 3.6 | - | V |
| Output Logic Levels | - | - | 3V, 3.3V, 5V | - | - | - |
Key Features
- 12-bit resolution with 8-channel multiplexer
- High-bandwidth track/hold and successive approximation analog-to-digital conversion
- Operates with single +5V or dual ±5V analog supplies
- Internal 4.096V reference voltage (MAX1202)
- Reference-buffer amplifier for gain trim
- 4-wire serial interface compatible with SPI/MICROWIRE® and TMS320-family DSPs
- Serial interface operates up to 2MHz
- Low power consumption: 1.5mA (Operating Mode), 2µA (Power-Down Mode)
- Software-configurable unipolar/bipolar inputs
- Voltage supply for digital outputs (VL pin) supports 3V, 3.3V, or 5V logic levels
Applications
The MAX1202BCPP+ is ideal for various data acquisition applications, particularly those requiring mixed voltage supplies. It is suitable for use in:
- Industrial control systems
- Medical devices
- Aerospace and defense systems
- Automotive systems
- Any application requiring high-speed, low-power analog-to-digital conversion with multiple input channels
The MAX1202 evaluation system (EV system) and evaluation kit (EV kit) are available for comprehensive evaluation and testing of the MAX1202BCPP+ using a personal computer.
Q & A
- What is the resolution of the MAX1202BCPP+ ADC?
The MAX1202BCPP+ has a 12-bit resolution.
- How many input channels does the MAX1202BCPP+ support?
The MAX1202BCPP+ supports 8 input channels.
- What are the supported analog supply voltages for the MAX1202BCPP+?
The MAX1202BCPP+ operates with a single +5V or dual ±5V analog supplies.
- Does the MAX1202BCPP+ have an internal reference voltage?
Yes, the MAX1202BCPP+ features an internal 4.096V reference voltage.
- What is the maximum serial interface speed of the MAX1202BCPP+?
The serial interface of the MAX1202BCPP+ operates up to 2MHz.
- What are the power consumption levels of the MAX1202BCPP+?
The MAX1202BCPP+ consumes 1.5mA in operating mode and 2µA in power-down mode.
- Is the MAX1202BCPP+ compatible with SPI and MICROWIRE® devices?
Yes, the MAX1202BCPP+ is compatible with SPI/MICROWIRE® devices and TMS320-family digital signal processors.
- What are the supported output logic levels for the MAX1202BCPP+?
The output logic levels supported are 3V, 3.3V, and 5V, determined by the voltage applied to the VL pin.
- Can the MAX1202BCPP+ be used in applications with mixed voltage supplies?
Yes, the MAX1202BCPP+ is specifically designed for applications with mixed +5V (analog) and +3V (digital) supply voltages.
- Is there an evaluation kit available for the MAX1202BCPP+?
Yes, the MAX1202 evaluation system (EV system) and evaluation kit (EV kit) are available for comprehensive evaluation.
