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Product attributes Property Value
Manufacturer Analog Devices Inc./Maxim Integrated
Product Series
Packaging Bulk |
Number of Bits 14
Sampling Rate (Per Second) 116k
Number of Inputs 2, 4
Input Type Differential, Single Ended
Data Interface 4-Wire Serial, Microwire, QSPI, SPI
Configuration MUX-S/H-ADC
Ratio - S/H:ADC 1:1
Number of A/D Converters 1
Architecture SAR
Reference Type External, Internal
Voltage - Supply, Analog 2.7V ~ 3.6V
Voltage - Supply, Digital 2.7V ~ 3.6V
Features -
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount
Grade -
Qualification -
Package / Case 20-TSSOP (0.173", 4.40mm Width)
Supplier Device Package 20-TSSOP

The MAX1147BEUP from Analog Devices/Maxim Integrated is a precision 14-bit ADC designed for multi-channel sensing applications. It offers a sampling rate of 116 kSPS and supports 2 or 4 input channels via an integrated multiplexer. The device features a flexible 4-wire serial interface (SPI/QSPI/Microwire) for easy integration with microcontrollers. With both external and internal reference options, it provides design flexibility. Housed in a compact 20-TSSOP package, it operates over the industrial temperature range, making it ideal for industrial, medical, and automotive applications.

  • Multichannel Flexibility: Supports 2 or 4 input channels, reducing external multiplexing components.
  • High Precision: 14-bit resolution ensures accurate representation of analog signals for demanding measurement tasks.
  • Wide Temperature Range: -40°C to +85°C operation suits harsh industrial and automotive environments.
  • Standard Serial Interface: SPI/QSPI/Microwire compatibility simplifies connection to a wide range of microcontrollers.

Industrial Process Control

The MAX1147BEUP's 14-bit resolution and 116 kSPS sampling rate enable precise monitoring of temperature, pressure, and flow sensors in industrial automation, ensuring tight process control.

Portable Medical Devices

With low power consumption and a 20-TSSOP package, it is suitable for battery-powered patient monitors and glucose meters requiring accurate analog signal conversion.

Data Acquisition Systems

The integrated MUX allows multiplexing up to 4 analog inputs, simplifying multi-channel data logging in environmental monitoring systems.

Automotive Sensor Interfaces

Its -40°C to +85°C range and SPI interface make it robust for automotive battery management and motor control sensing applications.

Precision Instrumentation

The 14-bit resolution and external reference support enable accurate measurements in digital multimeters and bench-top lab equipment.

Smart Grid Monitoring

It can digitize voltage and current transformer outputs for power quality analyzers, providing high-resolution data for grid stability analysis.

Q: What is the MAX1147BEUP ADC?
A: It is a 14-bit, multichannel, low-power, serial-output analog-to-digital converter with an integrated multiplexer and sample-and-hold.
Q: What is the resolution?
A: The resolution is 14 bits, offering 16384 distinct levels for high-precision measurements.
Q: What is the sampling rate?
A: The maximum sampling rate is 116 kSPS (kilo-samples per second).
Q: How many channels does it support?
A: It supports 2 or 4 input channels (selectable), providing flexibility for multi-sensor systems.
Q: What interfaces are available?
A: It features a 4-wire serial interface compatible with SPI, QSPI, and Microwire protocols.
Q: What is the operating temperature range?
A: It operates over the industrial temperature range of -40°C to +85°C.
Base Product Number : MAX1147
116 kSPS 14-bit ADC Analog-to-Digital Converter MAX1147 Maxim Integrated Microwire Multichannel QSPI SPI TSSOP-20
Q: What is the MAX1147BEUP ADC?
A: It is a 14-bit, multichannel, low-power, serial-output analog-to-digital converter with an integrated multiplexer and sample-and-hold.
Q: What is the resolution?
A: The resolution is 14 bits, offering 16384 distinct levels for high-precision measurements.
Q: What is the sampling rate?
A: The maximum sampling rate is 116 kSPS (kilo-samples per second).
Q: How many channels does it support?
A: It supports 2 or 4 input channels (selectable), providing flexibility for multi-sensor systems.
Q: What interfaces are available?
A: It features a 4-wire serial interface compatible with SPI, QSPI, and Microwire protocols.
Q: What is the operating temperature range?
A: It operates over the industrial temperature range of -40°C to +85°C.