ADC8417
8-Channel 24-Bit ADC
IndustryPack®
The Newwood Solutions IP-ADC-8417 is an Industry Pack® module provides 8 of simultaneously sampled analogue digitisation and programmable gain ranges with the following characteristics:-
• 8 simultaneously sampled channels.
• 8401 register superset and connector pin layout.
• 24-bit ADCs used on-board.
• Programmable 16bits/24bits resolution
• Programmable bi-polar full-scale resolution all inputs +/-10V or +/-5V bi-polar.
• Conversion method: Delta-sigma.
• On-board calibration by FPGA firmware using stored offset and gain parameters.
• 16bits accuracy +/-10V on board calibration.
• 16bits accuracy +/-5V on board calibration.
• True full differential inputs.
• Input impedance - 10Mohms differential.
• CMRR - 100dB at +/-5V wrt plant CMV.
• DC +/-25V overload for 1ms.
• On board RAM Memory up to 1M x 16 bits (128K samples per channel in 16 bit mode and 64K samples per channel in 24 bit mode.
• Offset drift 4uV/degC typical.
• Gain drift 2ppm/degC typical.
• Up to 100kSPS sampling rate from an external clock.
• Internal update clock rates programmable (100KHz,50KHz,20KHz,10KHz,5KHz,2KHz,1KHz,500Hz,200Hz,100Hz,50Hz,20Hz,10Hz,5Hz,2Hz and 1Hz)
• ADC Noise 20uV rms.
• Bandwidth 70kHz@100kSPS.
• System to plant isolation to 100V when externally powered by DC/DC converter option.
• Ext sample clock up to 100kHz isolated input.
• Ext trigger isolated input.
• Two buffered reference voltage outputs for excitation.
• 8/32MHz IP system clock operation.
• Field upgradeable firmware via IP bus or JTAG port.
• EPICS and ASYN driver support.
Size: Single width Industry Pack 1.8ins x 3.9 ins
Operating temp: 0 to 45 deg C ambient
Number of channels: 8
ADC resolution: 24 bits
Range: +/-10V or +/-5V full scale (+ve input referred to –ve input)
Overvoltage: +/-25V peak for 1ms
Bandwidth (-3dB): 170KHz
Throughput: 100KHz
ADC device: TI ADS1274
Data format: 24 bits straight binary
SNR: ADC Signal-to-Noise 110dB (typ)
Diff. Non-linearity: +/-0.75 LSB TYP
Int. Non-linearity: +/-1.5 LSB TYP
Offset error: +/-10V offset error - +/-610uV with firmware calibration @ 25 deg C
(+/- 2mV typical without calibration).
+/-5V offset error - +/-305uV after firmware calibration @ 25 deg C
(+/- 2mV typical without calibration).
Offset drift: 10uV/degC typical
Gain error: +/-10V gain error - +/-610uV after firmware calibration @ 25 deg C
(+/- 0.2% FS typical without calibration).
+/-5V gain error - +/-305uV after firmware calibration @ 25 deg C
(+/- 0.2% FS typical without calibration).
Gain drift: 5ppm/degC typical
Isolation: System to plant isolation to 100V when externally powered by DC/DC converter option.
Memory: 1M x 16 bits.
Power:
+5V @ 50mA typical
+12V @ 315mA typical when switched to internal
-12V @ 120mA typical when switched to internal
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