| SPECIFICATIONS |
| Parameter | Condition | Specification |
| A/D converter type | | ADS1256, 24-bit Sigma Delta |
| A/D data rates | | 3750 S/s, 2000 S/s, 1000 S/s, 500 S/s, 100 S/s, 60 S/s, 50 S/s, 25 S/s, 10 S/s, 5 S/s, 2.5 S/s |
| Throughput | | Single channel: 2.5 S/s to 1102.94 S/s (software-selectable)
Multiple channels: 0.16 S/s to 551.47 S/s (softwareselectable)
See Table 11 and Table 12 for details. |
| Number of channels | | 16 single-ended or 8 differential (software-selectable). Thermocouples require differential mode. For each channel configured as differential, you essentially lose two single-ended channels. |
| Input isolation | | 500 VDC min between field wiring and USB interface |
| Channel configurations | | Temperature sensor input, software-selectable to match sensor type
Voltage input |
| Input voltage range | Thermocouple mode | ±0.078125 V |
| Voltage mode | ±10 V, ±5 V, ±2.5 V, ±1.25 V, ±0.625 V, ±0.3125 V,
±0.15625 V, ±0.078125 V (software-selectable) |
| Absolute maximum input voltage | CxH-CxL relative to GND | ±22 V max (power on)
±10 V max (power off) |
| Input impedance | | 10 M? (power on)
390 O (power off) |
| Input leakage current | | ±20 nA |
| Input voltage >±30 V (power on/off) | ±1 µA max |
| Input capacitance | | 590 pf |
| Maximum working voltage (signal + common mode) | Voltage mode | ±10.25 V max |
| Common mode rejection ratio | Thermocouple mode, (fIN = 60 Hz) | 110 dB |
| Voltage mode, (fIN = 60 Hz, all input ranges) | 90 dB |
| ADC resolution | | 24 bits |
| Crosstalk | Adj chan, DIFF mode | 100 dB |
| Input Coupling | | DC |
| Channel gain queue | Up to 64 elements | Software-selectable channel and range |
| Warm-up time | | 45 minutes min |
| Open thermocouple detect | | Software-selectable for each Channel |
