U2353A AGILENT TECHNOLOGIES, U2353A Datasheet - Page 39

• Manufacturer Part Number: U2353A
• Description: USB Modular Data Acquisition
• Manufacturer: AGILENT TECHNOLOGIES

Specifications of U2353A

• No. Of Channels: 16
• Sampling Rate: 1MSPS
• Input Voltage Max: 12V
• Input Current Max: 2A
• Bandwidth: 400kHz
• External Height: 44mm
• External Width: 120mm
• External Depth: 182.4mm
• Sample Rate: 500 KSa/s
• Lead Free Status / RoHS Status: na

[1]
[2]
Product specifi cations
General characteristics
Number of channels
Input voltage range for voltage mode
Input voltage (thermocouple mode)
Sampling rate for thermocouple mode
Sampling rate for overall module
Thermocouple types
Input specifi cations
Accuracy (thermocouple mode)
• Overall gain error
• Overall offset error
• Nonlinearity
System noise (rms)
• Gain (× 1)
• Gain (× 100)
Common Mode Rejection Ratio (CMRR)
• Voltage mode
• Thermocouple mode
Cold junction accuracy
Input characteristics
Bandwidth (voltage mode)
Bandwidth (thermocouple mode)
Overvoltage protection
Input impedance
Input bias current
Input offset current
Gain drift
Offset drift
Filter cutoff frequency (–3 dB)
(thermocouple mode)
Filter type (thermocouple mode)
Other features
Recommended warm up time
The overvoltage protection levels specifi ed above indicate the maximum voltage each input pin can tolerate without resulting in any damages.
On the channels confi gured for thermocouple mode, the TC+ and TC– pins can tolerate up to ±17 V of differential voltage for a few minutes. However,
However, prolonged exposure to these levels may affect device safety and reliability. Hence, it should be avoided where possible.
exceeding a voltage range of ±100 mV on these channels can cause additional current to be drawn from the device’s power supply regulators, which
may damage the device if multiple channels are overdriven for prolonged periods. This is the case when a voltage source is tied across the TC
TC
the channels set for bypass mode.
n
– pin. Voltage sources greater than ±100 mV should be tied to TC
[1]
31 differential and 1 CJC
±10 V (signal + common mode)
±100 mV
10 kSa/s total for all channels
500 kSa/s
J, K, R, S, T, N, E, and B
0.06% (23 °C ± 5 °C )
15 μV (without zeroing) (23 °C ± 5 °C )
6 μV (with zeroing)
< 0.005% of full scale range
100 μVrms
5 μVrms
> 60 dB
> 80 dB
±1.0 °C typical (23 °C ± 5 °C )
±1.5 °C typical (0 °C to 18 °C, 28 °C to 55 °C)
> 500 kHz
4.0 Hz
TC Mode
• Common mode: ±17 V (TC+ and TC– with respect to GND)
• Differential mode: ±7 V (Differential voltage between TC+ and TC–)
Bypass mode
Power-off Mode
> 1 GΩ
±2.5 nA max
±1.5 nA max
60 ppm/°C max
1 μV/°C max
4.0 Hz
Low Pass RC Filter
30 minutes
±20 V (TC+ input with respect to GND)
±11 V (TC+, TC– input with respect to GND)
[2]
n
+ and GND (fl oating source), or TC
39
n
+ and TC
n+1
+ (grounded source), and have
n
+ and