Overview
The MAX1085ACSA is a 10-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device combines a high-bandwidth track/hold, a serial interface with high conversion speed, an internal +2.5V reference, and low power consumption. The MAX1085 operates from a single +2.7V to +3.6V supply, making it suitable for a variety of applications where power efficiency and compact design are crucial.
The MAX1085ACSA is part of the MAX1084/MAX1085 family, which offers pin-compatible, higher-speed upgrades to the MAX1242/MAX1243. These converters are ideal for remote-sensor and data-acquisition applications, as well as other circuits with demanding power consumption and space requirements.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 10-bit | |
| Sampling Rate | 400ksps (MAX1084), 300ksps (MAX1085) | |
| Supply Voltage | +2.7V to +3.6V | V |
| Power Consumption | 2.5mA (at 400ksps) | mA |
| Internal Reference | +2.5V | V |
| Serial Interface | SPI/QSPI/MICROWIRE 3-Wire | |
| Package | 8-Pin SO |
Key Features
- Single-Supply Operation: +2.7V to +3.6V (MAX1085)
- 10-Bit Resolution
- High Sampling Rate: Up to 400ksps (MAX1084), 300ksps (MAX1085)
- Internal Track/Hold and +2.5V Reference
- Low Power Consumption: 2.5mA at 400ksps
- SPI/QSPI/MICROWIRE 3-Wire Serial Interface
- Pin-Compatible, High-Speed Upgrade to MAX1242/MAX1243
- Compact 8-Pin SO Package
Applications
- Battery-Powered Applications
- Data Acquisition
- Medical Instruments
- Pen Digitizers
- Portable Data Logging
- Process Control
Q & A
- What is the resolution of the MAX1085ACSA ADC?
The MAX1085ACSA has a 10-bit resolution.
- What is the operating voltage range for the MAX1085ACSA?
The MAX1085ACSA operates from a single +2.7V to +3.6V supply.
- What is the maximum sampling rate of the MAX1085ACSA?
The MAX1085ACSA has a maximum sampling rate of 300ksps.
- Does the MAX1085ACSA have an internal reference voltage?
Yes, the MAX1085ACSA includes an internal +2.5V reference voltage.
- What type of serial interface does the MAX1085ACSA use?
The MAX1085ACSA uses an SPI/QSPI/MICROWIRE 3-Wire serial interface.
- What is the power consumption of the MAX1085ACSA at 400ksps?
The power consumption is 2.5mA at 400ksps.
- In what package is the MAX1085ACSA available?
The MAX1085ACSA is available in an 8-Pin SO package.
- Is the MAX1085ACSA pin-compatible with other ADCs?
Yes, it is pin-compatible with the MAX1242/MAX1243.
- What are some typical applications for the MAX1085ACSA?
Typical applications include battery-powered devices, data acquisition, medical instruments, pen digitizers, portable data logging, and process control.
- How does the MAX1085ACSA handle successive-approximation analog-to-digital conversions?
The device uses an external serial-interface clock to perform successive-approximation analog-to-digital conversions.
