Basic Parameters
Resolution: 24 bits
Number of channels: 2 differential/4 single ended
Maximum sampling rate: 250Khz
Differential input voltage: (REF+)~(REF -)
Fast and flexible output rate: 5 SPS to 250 kSPS
Channel scanning rate: 50 kSPS/channel (20 us setup time)
Performance specifications
17.2 bit noise free resolution (250 kSPS)
20 bit noise free resolution (2.5 kSPS)
24 bit noise free resolution (20 SPS)
Integral nonlinearity (INL): ± 1 ppm of FSR
50 Hz and 60 Hz suppression: 85 dB, with a user configurable input channel setup time of 50 ms
2 fully differential channels or 4 single ended channels
Intersection point multiplexer
2.5 V on-chip reference voltage source (± 2 ppm/℃ drift)
Real track to track simulation and reference input buffer
Internal or external clock
Power supply: AVDD1=5V, AVDD2=I0VDD=2V to 5V
Separate power supply, AVDD1/AVSS is+2.5 V
ADC current: 8.4 mA
Temperature range: -40 ° C to+105 ° C
Block Diagram
Performance Comparison of AD717X Family Models
| Part# |
Bit |
# of Channels |
Maximum Sample Rate |
Maximum Noise-free Resolution |
Signal/Reference Input Buffer |
Nonlinear Integral(ppm of FSR) |
Channel Scan Rate(kSPS/CH) |
| AD7175-2CH |
24 |
2 |
250ksps |
24 |
Y |
±1 |
50ksps |
| AD7175-8CH |
24 |
8 |
250ksps |
24 |
Y |
±1 |
50ksps |
| AD7176-2CH |
24 |
2 |
250ksps |
22 |
N |
±2.5 |
50ksps |
| AD7177-2CH |
32 |
2 |
10ksps |
24.6 |
Y |
±1 |
10ksps |
| AD7172-2CH |
24 |
2 |
31.25ksps |
24 |
Y |
±2 |
6.21ksps |
| AD7172-4CH |
24 |
4 |
31.25ksps |
24 |
Y |
±2 |
6.21ksps |
| AD7173-8CH |
24 |
8 |
31.25ksps |
24 |
Y |
±3 |
6.21ksps |
Applications
About its Motherboard
We have designed a motherboard based on STM32 microcontroller, and you can test and develop it by installing these ADC modules on this motherboard. In order to accelerate users' learning and development speed, we provide a sample program for ADC data collection. After placing an order, please contact us via email to request this routine and other related information.
