MAX1343BETX+T

ADCs/DACs - Special Purpose Overview

The MAX1343BETX+T is a 12-bit multichannel data acquisition system integrating an ADC, DAC, temperature sensor, and GPIOs. It features eight single-ended or four differential analog inputs with a true-differential track/hold amplifier. The ADC achieves a 225ksps conversion rate with ±0.5 LSB INL/DNL accuracy. An octal 12-bit DAC settles within 2.0µs, exhibiting ultra-low glitch energy of 4nV·s. The device operates on a single +2.7V to +5.25V supply, consuming 2.5mA at full throughput and under 0.2µA in shutdown. It includes an internal 2.5V reference, a ±1°C accurate temperature sensor, and a 16-word FIFO.

ADCs/DACs - Special Purpose Feature Summary

• 12-Bit ADC with 225ksps throughput and ±0.5 LSB INL/DNL
• Octal 12-Bit DAC with 2.0µs settling time and 4nV·s glitch energy
• On-chip 16-word FIFO for ADC conversions and temperature data
• Internal ±1°C accurate temperature sensor and 2.5V reference
• Configurable GPIO ports and AutoShutdown power management

ADCs/DACs - Special Purpose Applications

• Closed-loop controls for optical components
• Base station system supervision and control
• Data-acquisition systems requiring low power and high channel count

ADCs/DACs - Special Purpose Procurement Notes

Verify the 'T' suffix indicates tape-and-reel packaging when sourcing this component. Confirm that the specific revision matches the required electrical characteristics, as parameters are guaranteed over the -40°C to +85°C range. Ensure the design accommodates the 36-pin thin QFN package dimensions and exposed pad thermal requirements for proper heat dissipation during operation.

ADCs/DACs - Special Purpose Selection Notes

Select the MAX1343BETX+T when eight single-ended or four differential analog input channels are required alongside four DAC outputs. This part is suitable for applications needing integrated temperature sensing and GPIO functionality without external multiplexers. Verify that the 2.7V to 5.25V supply range aligns with the system power architecture and that the 25MHz serial interface timing meets the host controller's capabilities.

ADCs/DACs - Special Purpose Part Context

The MAX1343 belongs to the MAX1221/MAX1223/MAX1343 family of 12-bit data acquisition systems. While sharing core ADC/DAC specifications, the MAX1343 specifically provides eight ADC channels and four DAC channels, distinguishing it from the MAX1221 (eight ADC, eight DAC) and MAX1223 (twelve ADC, zero DAC). All variants utilize the same 36-pin Thin QFN-EP package and share identical pinouts for compatibility.

ADCs/DACs - Special Purpose Replacement Considerations

The MAX1221BETX+T serves as a direct functional substitute if eight DAC channels are required instead of four. The MAX1223BETX+T is an alternative for designs prioritizing twelve ADC channels over DAC outputs. These parts share the same package, pinout, and core electrical specifications, allowing for potential board-level swaps without schematic changes.