ADS1675IPAG Detailed explanation of pin function specifications and circuit principle instructions

The "ADS1675IPAG" is a model from Texas Instruments (TI). It is a 16-bit, 8-channel Analog-to-Digital Converter (ADC) with an integrated programmable gain amplifier (PGA) and supports differential and single-ended inputs.

Package Type:

The ADS1675IPAG comes in a TQFP (Thin Quad Flat Package) form factor, which typically has 48 pins. Here is a breakdown of the pin functions for all 48 pins.

Pin Function List (All 48 Pins):

Pin Number Pin Name Pin Function Description 1 VREFP Positive reference voltage input (Analog input). 2 VREFN Negative reference voltage input (Analog input). 3 AIN0P Positive analog input for channel 0 (Differential input). 4 AIN0N Negative analog input for channel 0 (Differential input). 5 AIN1P Positive analog input for channel 1 (Differential input). 6 AIN1N Negative analog input for channel 1 (Differential input). 7 AIN2P Positive analog input for channel 2 (Differential input). 8 AIN2N Negative analog input for channel 2 (Differential input). 9 AIN3P Positive analog input for channel 3 (Differential input). 10 AIN3N Negative analog input for channel 3 (Differential input). 11 AIN4P Positive analog input for channel 4 (Differential input). 12 AIN4N Negative analog input for channel 4 (Differential input). 13 AIN5P Positive analog input for channel 5 (Differential input). 14 AIN5N Negative analog input for channel 5 (Differential input). 15 AIN6P Positive analog input for channel 6 (Differential input). 16 AIN6N Negative analog input for channel 6 (Differential input). 17 AIN7P Positive analog input for channel 7 (Differential input). 18 AIN7N Negative analog input for channel 7 (Differential input). 19 VSS Ground pin for digital circuitry (Logic ground). 20 DGND Ground pin for digital circuitry (Logic ground). 21 AVDD Positive supply voltage input for analog circuitry. 22 DVDD Positive supply voltage input for digital circuitry. 23 DOUT Digital output data (Serial data output). 24 SCLK Serial clock input for data transfer. 25 CS Chip select input for initiating communication. 26 RESET Reset pin for resetting the internal circuitry. 27 INT Interrupt output pin for signaling end of conversion. 28 OVR Overrun flag indicating data loss or overflow. 29 SENSEIN Input for internal sensing function (voltage sense). 30 VSSA Analog ground reference. 31 VSENSE Sense output pin for monitoring the reference. 32 AIN0P Analog input pin (Channel 0 positive input). 33 AIN1P Analog input pin (Channel 1 positive input). 34 AIN2P Analog input pin (Channel 2 positive input). 35 AIN3P Analog input pin (Channel 3 positive input). 36 AIN4P Analog input pin (Channel 4 positive input). 37 AIN5P Analog input pin (Channel 5 positive input). 38 AIN6P Analog input pin (Channel 6 positive input). 39 AIN7P Analog input pin (Channel 7 positive input). 40 AVDD Positive supply voltage for analog portion. 41 VREFP Positive reference voltage input for ADC. 42 VREFN Negative reference voltage input for ADC. 43 SENSEOUT Sense output for monitoring reference voltage. 44 PGAOUT Output of the programmable gain amplifier. 45 REFOUT Output reference voltage for external circuitry. 46 DRDY Data ready signal when conversion is complete. 47 AIN8P Channel 8 positive analog input. 48 AIN8N Channel 8 negative analog input.

Pin Function FAQ for ADS1675IPAG (20 Common Questions)

What is the function of pin 1 (VREFP)? Pin 1 is the positive reference voltage input for the ADC.

What is the purpose of pin 4 (AIN0N)? Pin 4 is the negative input for the differential signal of channel 0.

How many analog input channels does the ADS1675IPAG have? The ADS1675IPAG has 8 analog input channels, each with a positive and negative pin for differential measurements.

What is the function of pin 19 (VSS)? Pin 19 is the ground reference for the digital circuits.

What is the voltage supply range for AVDD (pin 21)? The AVDD pin should receive a voltage between 4.5V and 5.5V for proper operation.

How is the data transferred from the ADS1675IPAG? The data is transferred through the DOUT pin (pin 23) via serial communication.

What is the function of pin 12 (AIN4N)? Pin 12 is the negative analog input for channel 4 in differential mode.

What is the purpose of pin 26 (RESET)? Pin 26 is used to reset the internal circuitry of the ADC to initialize it.

What is the function of pin 29 (SENSEIN)? Pin 29 is used for internal sensing of voltage or other characteristics for the device's operation.

How is the interrupt for data available indicated in this device? Pin 27 (INT) outputs an interrupt when conversion is complete.

What is the function of pin 24 (SCLK)? Pin 24 is the serial clock input used for controlling data transfer timings.

What is the purpose of pin 31 (VSENSE)? Pin 31 outputs the sensed voltage, often used for monitoring and adjusting the reference.

How does the ADS1675IPAG signal data readiness? Data readiness is indicated by the DRDY pin (pin 46), which goes low when data is available.

What is the reference voltage range for the ADS1675IPAG? The reference voltage (VREFP and VREFN) should be within the range of 0V to AVDD.

Can the ADC be used with a single-ended input signal? Yes, the ADS1675IPAG supports both differential and single-ended input configurations.

**What happens if the input signal exceeds the reference voltage