Overview
The MAX11121ATI+T is a high-performance, low-power analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX11120–MAX11128 family, which features 12-/10-/8-bit resolution and a 1Msps conversion rate. It is designed for applications requiring high-speed data acquisition, low power consumption, and compact packaging. The MAX11121ATI+T is particularly suited for portable battery-powered devices, industrial control systems, and medical instrumentation due to its excellent dynamic performance and power efficiency.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 10-bit |
| Conversion Rate | 1 Msps |
| Supply Voltage | 2.35V to 3.6V |
| Power Consumption | 5.4mW at 1Msps with 3V supplies |
| Input Channels | Up to 8 single-ended, 4 fully differential, or 8 pseudo-differential |
| Input Type | Single-ended, fully differential, pseudo-differential |
| Data Interface | 16MHz, 3-wire SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface |
| Operating Temperature | -40°C to +125°C |
| Package | 28-pin, 5mm x 5mm TQFN |
Key Features
- Scan modes with internal averaging and internal clock
- SampleSet: User-defined channel sequence with a maximum length of 256
- 16-entry First-In/First-Out (FIFO) for high-speed data sampling
- AutoShutdown, fast wake-up, and full power-down mode for optimal power management
- High accuracy: ±1 LSB INL, ±1 LSB DNL, no missing codes over temperature range
- 70dB SINAD guaranteed at 250kHz input frequency
- Flexible input configuration across all channels
- External differential reference (1V to VDD)
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 MAX11121ATI+T ADC?
The MAX11121ATI+T has a 10-bit resolution.
- What is the conversion rate of the MAX11121ATI+T?
The conversion rate is 1 Msps (1 million samples per second).
- What is the power consumption of the MAX11121ATI+T at 1Msps with 3V supplies?
The power consumption is 5.4mW at 1Msps with 3V supplies.
- What types of input channels does the MAX11121ATI+T support?
The device supports single-ended, fully differential, and pseudo-differential input channels.
- What is the operating temperature range of the MAX11121ATI+T?
The operating temperature range is -40°C to +125°C.
- What is the package type of the MAX11121ATI+T?
The device is packaged in a 28-pin, 5mm x 5mm TQFN package.
- Does the MAX11121ATI+T support internal averaging?
- What is the SampleSet feature in the MAX11121ATI+T?
The SampleSet feature is a user-programmable analog input channel sequencer that provides greater sequencing flexibility for multichannel applications.
- Is the MAX11121ATI+T compatible with SPI, QSPI, and MICROWIRE interfaces?
- What is the full-shutdown current of the MAX11121ATI+T?
The full-shutdown current is 2μA.
