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Basic Information
Question 1
What is the bit resolution of the HT82V24?
Answer
The ADC in the HT82V24 device is 16-bits.
Question 2
What is the conversion rate of the ADC in the HT82V24?
Answer
The ADC in the HT82V24 has a conversion rate as follows: with 3-channels the conversion rate is up to 5MSPS and with 2-channels it is up to 7.5 MSPS. For a singe-channel it is up to 15 MSPS.
Question 3
How many modes are there for the output data of the HT82V24?
Answer
The HT82V24 output data has a VM mode and an ADI mode, the choice of which is made via D8 in the Configuration Register.
Question 4
How does the HT82V24 interface to an MCU?
Answer
The HT82V24 and the MCU are connected through a 3-wire serial interface using pins SCLK, SDATA and SLOAD. By using these 3 pins the MCU can select the HT82V24 modes and conduct gain and offset adjustments.
Functional Description
Question 1
How can I adjust the gain of the HT82V24 internal amplifier?
Answer
The gain of the internal amplifier in the HT82V24 device, can be adjusted by changing the Red PGA Register, Green PGA Register and Blue PGA Register. The effective bits are D5-D0 for a Gain (V/V) range from 1 to 6 and Gain (DB) range from 0 to 15.6.
Question 2
How can I adjust the offset of the HT82V24?
Answer
The offset in the HT82V24 device, can be adjusted by changing the Red Offset Register, Green Offset Register and Blue Offset Register. The effective bits are D8-D0 (D8 is the negative bit) and the offset range is from +300mv to -300mv.
Question 3
How can the HT82V24 enter the Power Down Mode?
Answer
By setting the D2 bit in the Configuration Register, the HT82V24 can be made to enter the Power Down Mode, clearing the bit will make the device enter the Normal Mode. In the Power Down Mode the system will consume a typical current of about
2uA.
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