Overview
The MAX1148BEUP+ is a low-power, 14-bit, multichannel analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1146–MAX1149 series, which features internal track/hold (T/H), voltage reference, and clock. The MAX1148 operates from a single +4.75V to +5.25V supply, making it suitable for a variety of applications requiring high precision and low power consumption.
Key Specifications
| Specification | Value |
|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated |
| Package | TSSOP-20 |
| Resolution | 14-bit |
| Number of Channels | 4 Channel |
| Sampling Rate | 116 kS/s |
| Architecture | SAR (Successive Approximation Register) |
| Input Type | Differential/Single-Ended |
| Operating Supply Voltage | 4.75 V to 5.25 V |
| Interface Type | 3-Wire, SPI |
| Integral Nonlinearity (INL) | +/- 2 LSB |
| Differential Nonlinearity (DNL) | 1 / 1.5 LSB |
| Operating Temperature | -40°C to 125°C |
| Mounting Type | Surface Mount |
| Package Category | Small Outline Packages |
Key Features
- Low power consumption with a supply current under 120µA in power-down mode.
- Internal track/hold (T/H), voltage reference, and clock.
- Software configurable for unipolar/bipolar and single-ended/differential operation.
- 4-wire serial interface compatible with SPI™/QSPI™/MICROWIRE™ devices.
- Hardware shutdown and two software power-down modes.
- Internal +4.096V reference voltage.
- Accepts external reference voltage from 1.5V to VDD.
- Fault protection including reverse current and undervoltage lockout (UVLO).
Applications
- Multiplexed A/D Converters in various data acquisition systems.
- Industrial automation and control systems.
- Medical devices requiring high precision and low power consumption.
- Aerospace and defense applications where reliability and precision are critical.
- Automotive systems, including sensor interfaces and data logging.
Q & A
- What is the resolution of the MAX1148BEUP+ ADC?
The MAX1148BEUP+ has a 14-bit resolution.
- What is the sampling rate of the MAX1148BEUP+?
The sampling rate is 116 kS/s.
- What is the operating supply voltage range for the MAX1148BEUP+?
The operating supply voltage range is from 4.75 V to 5.25 V.
- What types of input configurations are supported by the MAX1148BEUP+?
The device supports both single-ended and differential input configurations.
- What is the interface type used by the MAX1148BEUP+?
The interface type is 3-Wire, SPI.
- How does the MAX1148BEUP+ manage power consumption?
The device features hardware shutdown and two software power-down modes to reduce power consumption.
- What is the operating temperature range for the MAX1148BEUP+?
The operating temperature range is from -40°C to 125°C.
- Does the MAX1148BEUP+ have internal reference voltage?
Yes, it includes an internal +4.096V reference voltage.
- Can the MAX1148BEUP+ accept an external reference voltage?
Yes, it can accept an external reference voltage from 1.5V to VDD.
- What kind of fault protection does the MAX1148BEUP+ offer?
The device offers fault protection including reverse current and undervoltage lockout (UVLO).
