Overview
The MAX1087ETA is a low-cost, micropower, serial output 10-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1086–MAX1089 family and is designed for applications requiring low power consumption and minimal space. It operates with a single +3V supply and features a successive-approximation ADC, automatic shutdown, and a high-speed 3-wire interface compatible with SPI, QSPI, and MICROWIRE.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Supply Voltage | 2.7V to 3.6V |
| Power Dissipation | 0.5mW (VDD = +2.7V) at 150ksps |
| Resolution | 10-bit |
| Sampling Rate | Up to 150ksps |
| Input Type | Single-ended (MAX1087) |
| Input Range | 0 to VREF |
| Interface | 3-wire SPI, QSPI, MICROWIRE-compatible |
| Package | 8-pin TDFN-8-EP(3x3) |
| 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)
- AutoShutdown between conversions (0.1µA in shutdown)
- Low power consumption: 200µA at 150ksps, 130µA at 100ksps, etc.
- True-differential track/hold (MAX1088/MAX1089 only)
- Software-configurable unipolar/bipolar conversion (MAX1088/MAX1089 only)
- SPI, QSPI, MICROWIRE-compatible interface
- Internal conversion clock
- Small package size: 8-pin SOT23 and 8-pin TDFN packages
Applications
- Low power data acquisition
- Portable battery-powered devices
- Temperature monitors
- Flowmeters
- Touch screens
Q & A
- What is the operating supply voltage of the MAX1087ETA?
The operating supply voltage is 2.7V to 3.6V. - What is the resolution of the MAX1087ETA ADC?
The resolution is 10-bit. - What is the maximum sampling rate of the MAX1087ETA?
The maximum sampling rate is up to 150ksps. - What type of interface does the MAX1087ETA use?
The interface is 3-wire SPI, QSPI, and MICROWIRE-compatible. - What is the package type of the MAX1087ETA?
The package type is 8-pin TDFN-8-EP(3x3). - What are the key applications of the MAX1087ETA?
The key applications include low power data acquisition, portable battery-powered devices, temperature monitors, flowmeters, and touch screens. - How does the AutoShutdown feature work?
The AutoShutdown feature reduces power consumption to 0.1µA between conversions. - What is the power consumption at different sampling rates?
The power consumption varies: 200µA at 150ksps, 130µA at 100ksps, 65µA at 50ksps, etc. - Is the MAX1087ETA suitable for battery-powered devices?
Yes, it is highly suitable due to its low power consumption and small package size. - What is the dynamic performance of the MAX1087ETA?
The dynamic performance includes a SINAD of 61 dB, THD of -70 dB, and SFDR of 70 dB.
