Cole-Parmer 18200-10 Specifications
Specifications
18200-10
Cole-Parmer Instrument Company
625 East Bunker Court
Vernon Hills, Illinois 60061-1844
(847) 549-7600
(847) 247-2929 (Fax)
800-323-4340
www.coleparmer.com
e-mail: techinfo@coleparmer.com
Document Revision 1.0, August, 2008
© Copyright 2008 Measurement Computing Corporation, 1208FS1-1
Specifications
Parameter
Conditions
Specification
A/D converter type
Successive approximation type
Input voltage range for linear operation,
single-ended mode
CHx to GND
±10 volts (V) max
Input common-mode voltage range for linear
operation, differential mode
CHx to GND
-10 V min, +20 V max
Absolute maximum input voltage
CHx to GND
±28 V max
Input impedance
122KOhm
Input current (Note 1)
Vin = +10 V
70 microamperes (µA) typ
Vin = 0 V
-12 µA typ
Vin = -10 V
-94 µA typ
Number of channels
8 single-ended / 4 differential, software
selectable
Input ranges, single-ended mode
±10 V, G=2
Input ranges, differential mode
±20 V, G=1
±10 V, G=2
±5 V, G=4
±4 V, G=5
±2.5 V, G=8
±2.0 V, G=10
±1.25 V, G=16
±1.0 V, G=20
Software selectable
Throughput (Note 2)
Software paced
250 samples per second (S/s) typ,
PC-dependent
Continuous scan
50 kilosamples per second (kS/s)
Channel gain queue
Up to 16 elements
Software configurable channel, range, and
gain.
Resolution (Note 3)
Differential
12 bits, no missing codes
Single-ended
11 bits
CAL accuracy
CAL = 2.5 V
±36.25 mV max
Integral linearity error
±1 least significant bit (LSB) typ
Differential linearity error
±0.5 LSB typ
Repeatability
±1 LSB typ
CAL current
Source
5 milliamperes (mA) max
Sink
20 µA min, 100 µA typ
Trigger source
Software selectable
External digital: TRIG_IN
Typical for 25°C unless otherwise specified.
Specifications in italic text are guaranteed by design.
Analog input
Table 1. Analog input specifications
Note 1: Input current is a function of applied voltage on the analog input channels. For a given input
voltage, Vin, the input leakage is approximately equal to (8.181*Vin-12) µA.
Note 2: Maximum throughput scanning to PC memory is machine dependent. The rates specified are
for Windows XP only. Maximum rates on operating systems that predate XP may be less and
must be determined through testing on your machine
1
Specifications 18200-10
Range
Accuracy (LSB)
±20 V
5.1
±10 V
6.1
±5 V
8.1
±4 V
9.1
±2.5 V
12.1
±2 V
14.1
±1.25 V
20.1
±1 V
24.1
Range
Accuracy (LSB)
±10 V
4.0
Range
% of Reading
Gain Error at full scale (FS)
(millivolts (mV))
Offset (mV)
Accuracy at FS (mV)
±20 V
0.2
40
9.766
49.766
±10 V
0.2
20
9.766
29.766
±5 V
0.2
10
9.766
19.766
±4 V
0.2 8 9.766
17.766
±2.5 V
0.2 5 9.766
14.766
±2 V
0.2 4 9.766
13.766
±1.25 V
0.2
2.5
9.766
12.266
±1 V
0.2 2 9.766
11.766
Range
% of Reading
Gain Error at FS (mV)
Offset (mV)
Accuracy at FS (mV)
±10 V
0.2
20
19.531
39.531
Range
Typical counts
Least significant bit
root mean square
(LSB
rms)
±20 V
2
0.30
±10 V
2
0.30
±5 V
3
0.45
±4 V
3
0.45
±2.5 V
4
0.61
±2 V
5
0.76
±1.25 V
7
1.06
±1 V
8
1.21
Range
Typical Counts
LSB
rms
±10 V
2
0.30
Note 3: The AD7870 converter only returns 11-bits (0-2047 codes) in single-ended mode.
Table 2. Accuracy, differential mode
Table 3. Accuracy, single-ended mode
Table 4. Accuracy components, differential mode - All values are (±)
Table 5. Accuracy components, single-ended mode - All values are (±)
Table 6. Noise performance, differential mode
Table 7. Noise performance, single-ended mode
2
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