OPT4001: What's the difference between OPT3001 and OPT4001

Harry Ma

Intellectual 1700 points

Part Number: OPT4001
Other Parts Discussed in Thread: OPT3001

Hi Team

OPT4001 is the next gen of OPT3001?

what's the difference between this two device, and which sorts of feature was improved of OPT4001 compared with OPT3001

over 1 year ago

0 Nick Zahabizadeh over 1 year ago

TI__Expert 4134 points

Hello Harry,

The OPT4001 offers higher precision and faster conversion times than the OPT3001. Higher precision allows for finer control of display brightness, especially under darker conditions, allowing for much more flexibility of the placement of the sensor. For example, the high precision OPT4001 would be a great for being placed in the cluster unit of a car. The faster conversion time enables better reaction time to environmental changes, like driving in and out of tunnels.

Since the resolution/conversion time ranges are programmable, it allows for much greater flexibility for the ALS to be in different use-cases where the OPT3001 could not be placed.

In cases where power efficiency is paramount, please note that the OPT3001 is still more efficient at an active power-on state.

Here's a basic breakdown of the difference between the two:

Specification	OPT4001	OPT3001
Channels	1	1
Active Diode area	0.4mm X 0.3mm	0.4mm X 0.3mm
Conversion Time	600uS to 800mS programmable 12 steps	100ms & 800ms
Resolution bits	4 Range bits 9 to 20 bits resolution	4 Range bits 12 bits resolution
Resolution in Lux	312.5uLux @ 800mS 2.5mLux @ 100mS 160mLux @ 1.8mS	10mLux @ 800ms 80mLux @ 100ms
Dynamic Range	83kLux Saturation	83kLux Saturation
Active Power	30uA @ 3.3V	1.8uA to 3.7uA @ 3.3V

Kind regards,
Nick Z

Sensors

Sensors forum

OPT4001: What's the difference between OPT3001 and OPT4001