Overview
The MAX144 and MAX145 are low-power, 12-bit analog-to-digital converters (ADCs) designed for applications requiring high precision and low power consumption. These ADCs are available in compact 8-pin µMAX and DIP packages, making them ideal for battery-powered devices, data-acquisition systems, and other applications with stringent power and space requirements.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Resolution | 12 bits | |
| Supply Voltage | +2.7V to +5.25V | |
| Power Consumption | 0.9mA (108ksps, +3V Supply) 100µA (10ksps, +3V Supply) 10µA (1ksps, +3V Supply) 0.2µA (Power-Down Mode) | |
| Sampling Rate | 108ksps | |
| Interface | SPI/QSPI/MICROWIRE-Compatible 3-Wire Serial Interface | |
| Operating Temperature Range | 0°C to +70°C (MAX144/MAX145_C_A) -40°C to +85°C (MAX144/MAX145_E_A) -55°C to +125°C (MAX144/MAX145_M_A) | |
| Package | 8-Pin µMAX, DIP |
Key Features
- Single-Supply Operation: The ADCs operate from a single supply voltage ranging from +2.7V to +5.25V.
- Low Power Consumption: The devices offer low power consumption, making them suitable for battery-powered applications.
- High Sampling Rate: The MAX144 and MAX145 have a sampling rate of up to 108ksps.
- Internal Track/Hold: The ADCs feature an internal track/hold circuit.
- SPI/QSPI/MICROWIRE-Compatible Interface: The devices use a 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols.
- Space-Saving Package: Available in compact 8-pin µMAX and DIP packages.
Applications
- Battery-Powered Devices: Ideal for applications where low power consumption is critical.
- Data-Acquisition Systems: Suitable for systems requiring high precision and low power.
- Portable Electronics: Used in various portable electronic devices due to their small package size and low power consumption.
- Industrial Automation: Can be used in industrial automation systems where precise data acquisition is necessary.
Q & A
- What is the resolution of the MAX144 and MAX145 ADCs?
The MAX144 and MAX145 ADCs have a resolution of 12 bits.
- What is the supply voltage range for the MAX144 and MAX145?
The supply voltage range is from +2.7V to +5.25V.
- What are the power consumption levels of the MAX144 and MAX145 at different sampling rates?
The power consumption is 0.9mA at 108ksps, 100µA at 10ksps, 10µA at 1ksps, and 0.2µA in power-down mode.
- What type of interface do the MAX144 and MAX145 use?
The devices use a SPI/QSPI/MICROWIRE-Compatible 3-Wire Serial Interface.
- What are the operating temperature ranges for the MAX144 and MAX145?
The operating temperature ranges are 0°C to +70°C, -40°C to +85°C, and -55°C to +125°C for different versions.
- What types of packages are available for the MAX144 and MAX145?
The devices are available in 8-pin µMAX and DIP packages.
- Are the MAX144 and MAX145 suitable for battery-powered applications?
Yes, they are ideal for battery-powered applications due to their low power consumption.
- Do the MAX144 and MAX145 have internal track/hold circuits?
Yes, the devices feature internal track/hold circuits.
- What is the maximum sampling rate of the MAX144 and MAX145?
The maximum sampling rate is 108ksps.
- Are there pin-compatible 10-bit versions available for the MAX144 and MAX145?
Yes, pin-compatible 10-bit versions are available, such as the MAX157 and MAX159.
