MAX11043ATL+

ADCs/DACs - Special Purpose Overview

The MAX11043ATL+ is a quad-channel, 16-bit simultaneous-sampling analog-to-digital converter (ADC) housed in a 40-pin TQFN package. It operates on a single +3.0V to +3.6V supply and supports an operating temperature range of -40°C to +125°C. The device features four sigma-delta ADCs with programmable-gain amplifiers (PGA) offering gains from 1 to 64. Each channel includes seven cascaded biquad filter sections for a total 14th-order filtering capability. The ADC provides throughput rates up to 800ksps per channel or 400ksps across all four channels via a 40MHz SPI interface.

ADCs/DACs - Special Purpose Feature Summary

• Quad-channel 16-bit simultaneous sampling with ±2 LSB INL and ±1 LSB DNL
• Integrated PGA with gains of 1, 2, 4, 8, 16, 32, or 64 and equalizer function
• Seven-stage programmable biquad digital filters per channel
• Dual-stage DAC comprising two 8-bit coarse DACs and one 12-bit fine DAC

ADCs/DACs - Special Purpose Applications

• Automotive Radar Systems
• Data Acquisition Systems
• Industrial Controls
• Power-Grid Monitoring

ADCs/DACs - Special Purpose Procurement Notes

Verify the component against the official Analog Devices datasheet (Rev 3, 11/12). Confirm that the ordering suffix 'TL+' indicates the lead-free/RoHS-compliant version in the 40-pin TQFN-EP package. Ensure the specific automotive qualification status matches project requirements, as standard parts may differ from '/V' variants.

ADCs/DACs - Special Purpose Selection Notes

Select this component when high channel-to-channel isolation and phase matching are required. The internal reference voltage is typically 2.5V; verify if external references between +2.0V and +2.8V are needed for specific system architectures. Consider the power consumption profiles, which vary significantly between PGA disabled and enabled states, to ensure thermal management within the TQFN enclosure.

ADCs/DACs - Special Purpose Part Context

The MAX11043 belongs to the Maxim Integrated family of high-performance data converters. It is designed for applications requiring precise multi-channel synchronization. The exposed pad (EP) must be connected to AGND on the PCB to facilitate thermal dissipation and maintain electrical grounding integrity.

ADCs/DACs - Special Purpose Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.

ADCs/DACs - Special Purpose FAQ

What is the maximum conversion rate supported by the MAX11043?

The device supports a maximum conversion rate of 800ksps when using two channels, or 400ksps per channel when utilizing all four channels simultaneously.

How does the Equalizer (EQ) function operate?

The EQ function automatically boosts low-amplitude, high-frequency signals. It combines an analog section in the PGA and a digital section from the biquad filters to provide gain proportional to frequencies up to 190kHz.

What is the structure of the integrated DAC?

The MAX11043 includes a dual-stage DAC consisting of two 8-bit coarse DACs that set the high and low references for a second-stage 12-bit fine DAC.