Overview
The MAX1238KEEE+ is a 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1236–MAX1239 family, known for their high-speed I2C-compatible serial interface and low-power consumption. The MAX1238KEEE+ is particularly suited for applications requiring high accuracy and speed in analog-to-digital conversion.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Number of Inputs | 6 or 12 (multiplexed) |
| Conversion Type | SAR (Successive Approximation Register) |
| Supply Voltage (Analog/Digital) | 4.5V to 5.5V |
| Operating Temperature | -40°C to +85°C |
| Package Type | 16-pin QSOP |
| Internal Reference Voltage | 4.096V |
| Sampling Rate | Up to 94.4 ksps |
| Track/Hold Acquisition Time | 800 ns |
| Input Voltage Range (Single-Ended/Differential) | 0 to VREF (single-ended), 0 ± VREF/2 (differential) |
Key Features
- High-Speed I2C-Compatible Serial Interface: Supports 400kHz Fast Mode and 1.7MHz High-Speed Mode.
- Low Power Consumption: Consumes 670µA (typ) at sampling rates up to 94.4 ksps.
- Internal Reference: 4.096V internal reference, with the option to use an external reference from 1V to VDD.
- Analog Input Multiplexer: Supports both single-ended and differential input configurations.
- Track and Hold: Fully differential track-and-hold architecture with a track time of 800 ns.
Applications
The MAX1238KEEE+ is suitable for a variety of applications that require precise and fast analog-to-digital conversion. These include industrial control systems, medical devices, automotive systems, and consumer electronics where high-speed data acquisition is necessary.
Q & A
- What is the resolution of the MAX1238KEEE+ ADC?
The MAX1238KEEE+ has a resolution of 12 bits. - What is the supply voltage range for the MAX1238KEEE+?
The supply voltage range is 4.5V to 5.5V. - What is the operating temperature range of the MAX1238KEEE+?
The operating temperature range is -40°C to +85°C. - What type of package does the MAX1238KEEE+ come in?
The MAX1238KEEE+ comes in a 16-pin QSOP package. - What is the internal reference voltage of the MAX1238KEEE+?
The internal reference voltage is 4.096V. - What is the maximum sampling rate of the MAX1238KEEE+?
The maximum sampling rate is up to 94.4 ksps. - Does the MAX1238KEEE+ support both single-ended and differential input configurations?
Yes, it supports both single-ended and differential input configurations. - What is the track and hold acquisition time of the MAX1238KEEE+?
The track and hold acquisition time is 800 ns. - Can the MAX1238KEEE+ use an external reference voltage?
Yes, it can use an external reference voltage from 1V to VDD. - What is the typical power consumption of the MAX1238KEEE+ at maximum sampling rate?
The typical power consumption is 670µA at sampling rates up to 94.4 ksps.
