Overview
The MAX148ACPP+ is a 10-bit data-acquisition system produced by Analog Devices Inc./Maxim Integrated. This device combines an 8-channel multiplexer, high-bandwidth track/hold circuitry, and a serial interface, making it suitable for a variety of data-acquisition applications. It operates from a single supply voltage ranging from +2.7V to +5.25V and supports sampling rates up to 133ksps. The MAX148ACPP+ is available in a 20-pin PDIP package and is known for its low power consumption and high conversion speed.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 10 Bits | |
| Supply Voltage | +2.7V to +5.25V | V |
| Sampling Rate | Up to 133ksps | sps |
| Power Consumption | 1.2mA (133ksps, 3V Supply), 54µA (1ksps, 3V Supply), 1µA (Power-Down Mode) | mA/µA |
| Input Configuration | Software-configurable for unipolar/bipolar and single-ended/differential operation | |
| Serial Interface | SPI/QSPI/MICROWIRE-compatible 4-wire serial interface | |
| Package Type | 20-pin PDIP | |
| Operating Temperature Range | 0°C to +70°C | °C |
| Conversion Time | 6µs (Internal clock), 7.5µs (External clock) | µs |
| Track/Hold Acquisition Time | 1.5µs | µs |
| Aperture Delay | 30ns | ns |
| Aperture Jitter | < 50ps | ps |
Key Features
- Single-supply operation: +2.7V to +5.25V
- Low power consumption: 1.2mA (133ksps, 3V Supply), 54µA (1ksps, 3V Supply), 1µA (Power-Down Mode)
- Software-configurable unipolar or bipolar inputs and single-ended or differential operation
- SPI/QSPI/MICROWIRE-compatible 4-wire serial interface
- Direct connection to TMS320-family digital signal processors via serial-strobe output
- Internal clock or external serial-interface clock for successive-approximation analog-to-digital conversions
- Hard-wired SHDN pin and software-selectable power-down mode
- Available in 20-pin PDIP and SSOP packages
Applications
- Data-acquisition systems
- Battery-powered devices
- Industrial control systems
- Medical devices
- Automotive systems
- Embedded systems requiring low power and high conversion speed
Q & A
- What is the resolution of the MAX148ACPP+ ADC?
The MAX148ACPP+ has a resolution of 10 bits.
- What is the operating supply voltage range for the MAX148ACPP+?
The MAX148ACPP+ operates from a single supply voltage ranging from +2.7V to +5.25V.
- What are the sampling rates supported by the MAX148ACPP+?
The MAX148ACPP+ supports sampling rates up to 133ksps.
- How can the input configuration of the MAX148ACPP+ be set?
The input configuration of the MAX148ACPP+ is software-configurable for unipolar/bipolar and single-ended/differential operation.
- What type of serial interface does the MAX148ACPP+ use?
The MAX148ACPP+ uses an SPI/QSPI/MICROWIRE-compatible 4-wire serial interface.
- What packages are available for the MAX148ACPP+?
The MAX148ACPP+ is available in 20-pin PDIP and SSOP packages.
- What is the power consumption of the MAX148ACPP+ in different modes?
The power consumption is 1.2mA at 133ksps, 54µA at 1ksps, and 1µA in power-down mode.
- Can the MAX148ACPP+ be used with external clocks?
Yes, the MAX148ACPP+ can use either an internal clock or an external serial-interface clock for conversions.
- How does the power-down mode work on the MAX148ACPP+?
The MAX148ACPP+ has a hard-wired SHDN pin and a software-selectable power-down mode, allowing it to be powered down between conversions to reduce supply current.
- What is the typical operating temperature range for the MAX148ACPP+?
The typical operating temperature range is 0°C to +70°C.
