Overview
The MAX11122ATI+ is a high-performance, low-power analog-to-digital converter (ADC) from Analog Devices Inc./Maxim Integrated. This device is part of the MAX11120–MAX11128 family, which features 12-/10-/8-bit resolution with an external reference. It is designed for high-speed, high-accuracy applications, offering a full linear bandwidth of 1.5MHz and a serial output successive-approximation register (SAR) architecture.
The MAX11122ATI+ is particularly suited for applications requiring low power consumption, high accuracy, and flexible input configurations. It supports both internal and external clock modes, including a scan mode and SampleSet™ technology for advanced sequencing in multichannel applications.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Resolution | 12-bit | ||||
| Conversion Rate | 1 Msps | ||||
| Analog Supply Voltage | 2.35V | 3.6V | V | ||
| Digital Supply Voltage | 2.35V | 3.6V | V | ||
| Signal-to-Noise Plus Distortion (SINAD) | 250kHz input frequency | 49 | 49.6 | dB | |
| Signal-to-Noise Ratio (SNR) | 250kHz input frequency | 49 | 49.6 | dB | |
| Power Consumption | At 1 Msps with 3V supplies | 5.4mW | mW | ||
| Full-Shutdown Current | 2μA | μA | |||
| Operating Temperature | -40°C | 125°C | °C | ||
| Package | 28-Pin TQFN |
Key Features
- High-speed, low-power SAR ADC with 12-bit resolution and external reference.
- Industry-leading 1.5MHz full linear bandwidth and 1 Msps conversion rate with no pipeline delay.
- Flexible input configuration with 15-/8-/4-channel pseudo-differential inputs relative to a common input.
- Software-selectable bipolar input ranges: ±VREF+/2, ±VREF+.
- SampleSet™ technology for user-programmable analog input channel sequencer.
- Internal averaging in internal clock mode to increase SNR.
- 16MHz, 3-wire SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface.
- Wide operating temperature range: -40°C to +125°C.
- Low power consumption: 5.4mW at 1 Msps with 3V supplies, and 2μA full-shutdown current).
- Space-saving 28-pin TQFN package).
Applications
- High-speed data acquisition systems.
- High-speed closed-loop systems.
- Industrial control systems.
- Medical instrumentation).
- Battery-powered instruments).
- Portable systems).
Q & A
- What is the resolution of the MAX11122ATI+ ADC?
The MAX11122ATI+ has a 12-bit resolution.
- What is the conversion rate of the MAX11122ATI+?
The conversion rate is up to 1 Msps).
- What are the supply voltage ranges for the MAX11122ATI+?
The analog and digital supply voltage ranges are from 2.35V to 3.6V).
- What is the SINAD of the MAX11122ATI+ at 250kHz input frequency?
The SINAD is guaranteed at 49 dB at 250kHz input frequency).
- What is the power consumption of the MAX11122ATI+ at 1 Msps with 3V supplies?
The power consumption is 5.4mW at 1 Msps with 3V supplies).
- What is the full-shutdown current of the MAX11122ATI+?
The full-shutdown current is 2μA).
- What is the operating temperature range of the MAX11122ATI+?
The operating temperature range is from -40°C to +125°C).
- What package type is the MAX11122ATI+ available in?
The MAX11122ATI+ is available in a 28-pin TQFN package).
- Does the MAX11122ATI+ support both internal and external clock modes?
Yes, it supports both internal and external clock modes, including a scan mode and SampleSet™ technology).
- What are some typical applications of the MAX11122ATI+?
Typical applications include high-speed data acquisition systems, industrial control systems, medical instrumentation, and battery-powered instruments).
