MAX11904
20-Bit, 1Msps, Low-Power, Fully Differential SAR ADC
Fastest and Lowest Power 20-Bit SAR ADC with Reference Buffer
Part Details
- High DC/AC Accuracy Provides Better Measurement Quality
- 20-Bit Resolution with No Missing Codes
- ±6 LSB INL and ±0.9 LSB DNL at 20 Bits
- 99.2dB SNR and 99.2dB SINAD at fIN = 10kHz
- 125dB SFDR and -123dB THD at fIN = 10kHz
- High Sampling Rate SAR Architecture Enables Fast Settling and Acquisition
- 1Msps Throughput with No Pipeline Delay
- Integration Simplifies Design
- Integrated Reference Buffers
- ±VREF Unipolar Differential Analog Input Range
- Scalable Ultra-Low Power Supply Reduces Power Consumption
- 6.7mW at 1Msps
- Scale as 6.7µW/ksps
- Flexible Low-Voltage Supplies Save Cost
- 1.8V Analog and Digital Core Supply
- 1.5V to 3.6V Digital Interface Supply
- 3.3V REFVDD Reference Buffer Supply
- Flexible, Industry-Standard Serial Interface and Small Package Reduce Size
- SPI-/QSPI™-/MICROWIRE®/DSP-Compatible
- 20-Pin, 4mm x 4mm, TQFN Package
The MAX11904 is a 20-bit, 1Msps, single-channel, fully differential SAR ADC with internal reference buffers. The MAX11904 provides excellent static and dynamic performance with best-in-class power consumption that directly scales with throughput. The device has a unipolar differential ±VREF input range. Supplies include a 3.3V supply for the reference buffers, a 1.8V analog supply, a 1.8V digital supply, and a 1.5V to 3.6V digital interface supply.
This ADC achieves 99.2dB SNR and -123dB THD, guarantees 20-bit resolution with no-missing codes and 6 LSB INL (max).
The MAX11904 communicates data using a SPI-compatible serial interface. The MAX11904 is offered in a 20-pin, 4mm x 4mm, TQFN package and is specified over the -40°C to +85°C operating temperature range.
Applications
- Automatic Test Equipment
- Battery-Powered Equipment
- Data Acquisition Systems
- Medical Instrumentation
- Process Control and Industrial Automation
- Telecommunications
- Test and Measurement
Documentation
Data Sheet 1
Reliability Data 1
Technical Articles 1
This is the most up-to-date revision of the Data Sheet.
Software Resources
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IBIS Model 1
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