ZHCSIK6C November 2017 – November 2019 ADS8166 , ADS8167 , ADS8168
PRODUCTION DATA.
PIN | FUNCTION | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
ADC-INM | 20 | Analog input | Negative ADC analog input |
ADC-INP | 17 | Analog input | Positive ADC analog input |
AIN0 | 9 | Analog input | Analog input channel 0 |
AIN1 | 10 | Analog input | Analog input channel 1 |
AIN2 | 11 | Analog input | Analog input channel 2 |
AIN3 | 12 | Analog input | Analog input channel 3 |
AIN4 | 13 | Analog input | Analog input channel 4 |
AIN5 | 14 | Analog input | Analog input channel 5 |
AIN6 | 15 | Analog input | Analog input channel 6 |
AIN7 | 16 | Analog input | Analog input channel 7 |
AIN-COM | 8 | Analog input | Common analog input |
ALERT | 22 | Digital output | Digital ALERT output; active high.
This pin is the output of the logical OR of the enabled channel ALERTs. |
AVDD | 32 | Power supply | Analog power-supply pin. Connect a 1-µF capacitor from this pin to GND. |
CS | 23 | Digital input | Chip-select input pin; active low.
The device starts converting the active input channel on the rising edge of CS. The device takes control of the data bus when CS is low. The SDO-x pins go Hi-Z when CS is high. |
DECAP | 2 | Power supply | Connect a 1-µF capacitor to GND for the internal power supply. |
DVDD | 30 | Power supply | Interface power-supply pin. Connect a 1-µF capacitor from this pin to GND. |
GND | 1, 21, 31 | Power supply | Ground |
MUXOUT-M | 19 | Analog output | MUX negative analog output |
MUXOUT-P | 18 | Analog output | MUX positive analog output |
READY | 28 | Digital output | Multifunction output pin.
When CS is held high, READY reflects the device conversion status. READY is low when a conversion is in process. When CS is low, the status of READY depends on the output protocol selection. |
REFby2 | 7 | Analog output | The output voltage on this pin is equal to half the voltage on the REFP pin.
Connect a 1-µF capacitor from this pin to GND. |
REFIO | 3 | Analog input/output | Reference voltage input; internal reference is a 4.096-V output.
Connect a 1-µF capacitor from this pin to GND. |
REFM | 4 | Analog input | Reference ground potential; short this pin to GND externally. |
REFP | 5, 6 | Analog input/output | Reference buffer output, ADC reference input. Short pins 5 and 6 together. |
RST | 29 | Digital input | Asynchronous reset input pin.
A low pulse on the RST pin resets the device. All register bits return to their default states. |
SCLK | 25 | Digital input | Clock input pin for the serial interface.
All system-synchronous data transfer protocols are timed with respect to the SCLK signal. |
SDI | 24 | Digital input | Serial data input pin.
This pin is used to transfer data or commands into the device. |
SDO-0 | 26 | Digital output | Serial communication pin: data output 0. |
SDO-1/ SEQSTS | 27 | Digital output | Multifunction output pin. By default, this pin indicates the channel scanning status in the auto and custom channel sequence modes.
In dual SDO data transfer mode this pin functions as a serial communication pin: data output 1. |
Thermal pad | Supply | Exposed thermal pad; connect to GND. |