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ADS7038 8-ch 12-bit ADC
ADS7038
Texas Instrumentsic data converter
The ADS7038 is an 8-channel, 12-bit successive approximation register ADC with SPI interface and GPIOs.
In stock
Specifications
8- Operating Voltage
- 2.35V to 5.5V (AVDD), 1.65V to 5.5V (DVDD)
- Supply Current
- 490µA to 600µA (IAVDD) at full throughput, AVDD = 5V
- Interface
- SPI
- Resolution
- 12 bits
- Range
- 0 to AVDD (FSR) V
- Accuracy
- ±0.5 LSB DNL, ±0.5 LSB INL
- Temperature Range
- -40°C to +125°C
- Package
- 3mm × 3mm WQFN (RTE)
Pinout
16| Pin | Name | Functions | Notes |
|---|---|---|---|
| AIN0/GPIO0 | Channel 0 | ADCGPIO | Analog input (default), digital input, or digital output |
| AIN1/GPIO1 | Channel 1 | ADCGPIO | Analog input (default), digital input, or digital output |
| AIN2/GPIO2 | Channel 2 | ADCGPIO | Analog input (default), digital input, or digital output |
| AIN3/GPIO3 | Channel 3 | ADCGPIO | Analog input (default), digital input, or digital output |
| AIN4/GPIO4 | Channel 4 | ADCGPIO | Analog input (default), digital input, or digital output |
| AIN5/GPIO5 | Channel 5 | ADCGPIO | Analog input (default), digital input, or digital output |
| AIN6/GPIO6 | Channel 6 | ADCGPIO | Analog input (default), digital input, or digital output |
| AIN7/GPIO7 | Channel 7 | ADCGPIO | Analog input (default), digital input, or digital output |
| AVDD | Analog Supply Voltage | POWER | Connect a 1-µF decoupling capacitor to GND. |
| DECAP | Decoupling Pin | POWER | Connect a 1-µF decoupling capacitor to GND for the internal power supply. |
| DVDD | Digital Supply Voltage | POWER | Connect a 1-µF decoupling capacitor to GND. |
| GND | Ground | GND | Ground for the power supply; all analog and digital signals are referred to this pin voltage. |
| SCLK | Serial Clock | SPI | Serial clock for the SPI interface. |
| SDI | Serial Data In | SPI | Serial data in for the device. |
| SDO | Serial Data Out | SPI | Serial data out for the device. |
| CS | Chip Select | SPI | Chip-select input pin; active low. The device takes control of the data bus when CS is low. SDO goes hi-Z when CS is high. |
Interactive pinout
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ADS7038
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