Overview
The MAX1086EKA, part of the MAX1086–MAX1089 series, is a low-cost, micropower, serial output 10-bit analog-to-digital converter (ADC) designed by Analog Devices Inc./Maxim Integrated. This ADC is available in a compact 8-pin SOT23 package, making it ideal for applications where space and power efficiency are critical. The device operates on a single supply voltage, either +3V or +5V, depending on the specific model, and features a successive-approximation ADC architecture. It is known for its low power consumption, fast wake-up time, and high-speed 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 10-bit |
| Supply Voltage | +4.75V to +5.25V (MAX1086), +2.7V to +3.6V (MAX1087) |
| Sampling Rate | Up to 150ksps |
| Power Consumption | 0.5mW at 150ksps, 0.1µA in shutdown |
| Input Type | Single-ended (MAX1086/MAX1087), True-differential (MAX1088/MAX1089) |
| Operating Temperature | -40°C to +85°C |
| Package | 8-pin SOT23, 8-pin TDFN |
| Interface | 3-wire SPI, QSPI, MICROWIRE-compatible |
| Offset Error | ±1.0 LSB |
| Gain Error | ±1.0 LSB |
| Signal to Noise Plus Distortion (SINAD) | 61 dB |
| Total Harmonic Distortion (THD) | -70 dB |
Key Features
- Single-supply operation: +3V (MAX1087/MAX1089) or +5V (MAX1086/MAX1088)
- AutoShutdown™ between conversions to reduce power consumption
- Low power consumption: 200µA at 150ksps, 0.1µA in shutdown
- True-differential track/hold and 150kHz sampling rate
- Software-configurable unipolar/bipolar conversion (MAX1088/MAX1089 only)
- High-speed 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols
- Internal conversion clock
- Compact 8-pin SOT23 and 8-pin TDFN packages
Applications
The MAX1086EKA is particularly suited for applications that require low power consumption and minimal space. These include:
- Portable battery-powered data acquisition systems
- Temperature monitors
- Flowmeters
- Touch screens
Q & A
- What is the resolution of the MAX1086EKA ADC?
The MAX1086EKA has a 10-bit resolution. - What are the supply voltage options for the MAX1086EKA?
The MAX1086EKA operates on a single supply voltage of +4.75V to +5.25V. - What is the maximum sampling rate of the MAX1086EKA?
The maximum sampling rate is up to 150ksps. - How much power does the MAX1086EKA consume at maximum sampling rate?
The power consumption is 0.5mW at 150ksps and 0.1µA in shutdown. - What types of input signals can the MAX1086EKA accept?
The MAX1086EKA accepts single-ended input signals, while the MAX1088/MAX1089 accept true-differential inputs. - What is the operating temperature range of the MAX1086EKA?
The operating temperature range is -40°C to +85°C. - What interface protocols does the MAX1086EKA support?
The MAX1086EKA supports SPI, QSPI, and MICROWIRE-compatible 3-wire serial interface. - What are the key features of the MAX1086EKA's power management?
The device features AutoShutdown™ between conversions and low power consumption, with 0.1µA in shutdown. - What are some typical applications for the MAX1086EKA?
Typical applications include portable battery-powered data acquisition systems, temperature monitors, flowmeters, and touch screens. - What package options are available for the MAX1086EKA?
The MAX1086EKA is available in 8-pin SOT23 and 8-pin TDFN packages.
