Overview
The MAX11127ATI+ is a high-speed, low-power, serial output successive-approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX11120–MAX11128 family, offering 12-, 10-, or 8-bit resolution with an external reference. It features a full linear bandwidth of 1.5MHz and is designed for high-speed data acquisition and low-power consumption, making it suitable for a variety of applications including industrial control systems, medical instrumentation, and battery-powered instruments.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12-, 10-, or 8-bit | |
| Conversion Rate | 1 Msps | |
| Supply Voltage (Analog and Digital) | 2.35V to 3.6V | V |
| Operating Temperature | -40°C to +125°C | °C |
| Signal-to-Noise Plus Distortion (SINAD) | 49 dB (typical at 250kHz input frequency) | dB |
| Signal-to-Noise Ratio (SNR) | 49 dB (typical at 250kHz input frequency) | dB |
| Power Consumption | 5.4 mW at 1 Msps with 3V supplies | mW |
| Full-Shutdown Current | 2 μA | μA |
| Input Configuration | 15-/8-/4-Channel Pseudo-Differential Relative to a Common Input | |
| Input Ranges | ±VREF+/2, ±VREF+ | |
| Serial Interface | 16MHz, 3-Wire SPI-/QSPI-/MICROWIRE-/DSP-Compatible |
Key Features
- High-speed, low-power operation with 1 Msps conversion rate and no pipeline delay.
- Flexible input configuration with 15-, 8-, or 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, reducing microcontroller or DSP communication overhead.
- Internal averaging in internal clock mode to increase SNR.
- Integrated FIFO in internal clock mode.
- Wide range I/O supply (1.5V to 3.6V) allowing direct connection to 1.8V, 2.5V, or 3.3V digital systems.
- Space-saving 28-pin, 5mm x 5mm TQFN package.
- AECQ-100 qualified variant available (MAX11128ATI/V+).
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 MAX11127ATI+ ADC?
The MAX11127ATI+ offers 12-, 10-, or 8-bit resolution. - What is the conversion rate of the MAX11127ATI+?
The conversion rate is 1 Msps. - What is the supply voltage range for the MAX11127ATI+?
The supply voltage range is 2.35V to 3.6V for both analog and digital supplies. - What is the operating temperature range for the MAX11127ATI+?
The operating temperature range is -40°C to +125°C. - What is the SINAD of the MAX11127ATI+ at 250kHz input frequency?
The SINAD is typically 49 dB at 250kHz input frequency. - How much power does the MAX11127ATI+ consume at 1 Msps with 3V supplies?
The power consumption is 5.4 mW at 1 Msps with 3V supplies. - What is the full-shutdown current of the MAX11127ATI+?
The full-shutdown current is 2 μA. - What input configurations are available for the MAX11127ATI+?
The device supports 15-, 8-, or 4-channel pseudo-differential inputs relative to a common input. - What serial interface options are available for the MAX11127ATI+?
The device features a 16MHz, 3-Wire SPI-/QSPI-/MICROWIRE-/DSP-Compatible serial interface. - Is the MAX11127ATI+ suitable for automotive applications?
Yes, an AECQ-100 qualified variant is available (MAX11128ATI/V+).
