Overview
The MAX1288EKA is a 12-bit, single-channel, true-differential analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1286–MAX1289 family, known for its low power consumption, high dynamic performance, and compact packaging. It is available in an 8-pin SOT23 package, making it ideal for applications where space is limited.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Number of Channels | 1 (true-differential input) |
| Architecture | Successive Approximation Register (SAR) |
| Reference Type | External |
| Supply Voltage (Analog/Digital) | 4.75V to 5.25V |
| Sampling Rate | Up to 150ksps |
| Conversion Time (tCONV) | 3.7 µs (excluding acquisition time) |
| Acquisition Time (tACQ) | 1.4 µs |
| Aperture Delay | 30 ns |
| Aperture Jitter | <50 ps |
| Power Consumption | 0.5mW at 150ksps, 0.2µA in shutdown |
| Operating Temperature | -40°C to +85°C |
| Package Type | 8-pin SOT23 |
Key Features
- Single-supply operation: +5V for MAX1288EKA
- AutoShutdown™ between conversions to reduce power consumption
- Low power consumption: 245µA at 150ksps, 0.2µA in shutdown
- True-differential track/hold and 150kHz sampling rate
- Software-configurable unipolar/bipolar conversion
- SPI-/QSPI-/MICROWIRE-compatible interface for DSPs and processors
- Internal conversion clock
- High dynamic performance: SINAD > 70 dB, THD < -82 dB, SFDR > 86 dB
Applications
- Low-power data acquisition systems
- Portable battery-powered devices
- Temperature monitors
- Flowmeters
- Touch screens and other applications requiring low power and minimal space
Q & A
- What is the resolution of the MAX1288EKA ADC?
The MAX1288EKA has a 12-bit resolution. - What type of input does the MAX1288EKA support?
The MAX1288EKA supports true-differential inputs. - What is the maximum sampling rate of the MAX1288EKA?
The maximum sampling rate is up to 150ksps. - What is the power consumption of the MAX1288EKA at 150ksps?
The power consumption is 0.5mW at 150ksps. - Does the MAX1288EKA have an internal conversion clock?
Yes, the MAX1288EKA has an internal conversion clock. - What is the operating temperature range of the MAX1288EKA?
The operating temperature range is -40°C to +85°C. - What type of interface does the MAX1288EKA use for data communication?
The MAX1288EKA uses an SPI-/QSPI-/MICROWIRE-compatible interface. - How does the AutoShutdown feature benefit the MAX1288EKA?
The AutoShutdown feature reduces power consumption between conversions, especially at slower throughput rates. - What is the package type of the MAX1288EKA?
The MAX1288EKA is available in an 8-pin SOT23 package. - What are some typical applications of the MAX1288EKA?
Typical applications include low-power data acquisition systems, portable battery-powered devices, temperature monitors, flowmeters, and touch screens.
