Table of Contents
Advertisement
Specifications
All specifications are subject to change without notice.
Typical for 25 °C unless otherwise specified.
All specifications apply to all temperature and voltage input channels unless otherwise specified.
Specifications in italic text are guaranteed by design.
Analog input
Parameter
A/D converter type
Number of channels
Input isolation
Channel configuration
Analog input modes
Input ranges
Absolute maximum
input voltage
Input impedance
Table 1. Generic analog input specifications
Conditions
T0x-T3x, V0x-V3x
Voltage input
V0x-V3x
Temperature input
T0x-T3x
T0x-T3x
V0x-V3x
Power up and reset state
Single-ended
Differential
Thermocouple
T0x-T3x
RTD
T0x-T3x
Thermistor
T0x-T3x
Semiconductor sensor
T0x-T3x
Voltage
V0x-V3x
T0x-T3x relative to GND
(pins 9, 19, 22, 27, 30, 33, 36, 39, 49)
V0x-V3x relative to GND
(pins 9, 19, 22, 27, 30, 33, 36, 39, 49)
T0x-T3x
Specification
AD42_321
Dual 24-bit Sigma-Delta
4 differential
4 single-ended
4 differential
500 VDC minimum between field wiring and USB
interface
Temperature input.
Software programmable to match sensor type
Voltage input
Factory default configuration is Disabled mode.
Once configured, each channel reverts to the mode
previously set by the user.
Vx_H inputs are connected directly to their screw
terminal pins.
Vx_L inputs are disconnected from their screw
terminal pins and internally connected to GND.
Vx_H and Vx_L inputs are connected directly to
their screw terminal pins.
Tx_H and Tx_L inputs are connected directly to their
screw terminal pins.
±0.080 V
0 to 0.5 V
0 to 2 V
0 to 2.5 V
±10 V, ±5 V, ±2.5 V, ±1.25 V
software selectable
±25 V maximum (power on)
±40 V maximum (power off)
±25 V maximum (power on)
±15 V maximum (power off)
5 Gigohm (power on)
1 Mohm (power off)
Chapter 5
Advertisement
Table of Contents
