Analog Signal to RS485/232 Converter, AD converter 12bits

Description

Product Selection:                                                                                
WJ21  U(A)    â–¡   â–¡
Input Voltage or Current Signal                     Interface
U1：0-5V           A1：0-1mA                  485： output is RS-485 interface 
   U2：0-10V          A2：0-10mA                 232： output is RS-232 interface
U3：0-75mV         A3：0-20mA            
  U4：0-2.5V          A4：4-20mA                         
   U5：0-±5V          A5：0-±1mA                         
   U6：0-±10V         A6：0-±10mA                         
   U7：0-±100mV      A7：0-±20mA
   U8：user-defined     A8：user-defined
Sample 1:    part No.:WJ21 A4-485   4-20mA input signal，output is RS485 interface
Sample 1:    part No.:WJ21 U1-232  0-5V input signal，output is RS232 interface
General *:*/* &*;(*@********************nt-family:宋体;">℃, Vs to 24VDC)
 Input type: Input current / voltage input
 Accuracy: 0.1%
 Temperature drift:± 30 ppm / ℃ (± 50 ppm / ℃, maximum)
 Input Resistance: 50Ω (4-20mA/0-20mA/0- ± 20mA current input)
              100Ω (0-10mA/0- ± 10mA current input)
              1KΩ (0-1mA/0- ± 1mA current input)
              >1MΩ(voltage input)
Bandwidth:  -3 dB 10 Hz
Conversion rate: 10 Sps
Common Mode Rejection (CMR): 120 dB (1kΩ Source Imbalance