1 GENERAL DESCRIPTION AND SPECIFICATIONS
The Model 10A64-8C is a high-accuracy conditioner allowing input of up to eight
external voltage signals. Mixed as desired, these may originate from DC-to-DC
LVDT’s, potentiometer-type sensors, and other 2-wire analog signal sources that
pro-
vide their own power supply.
Or they may represent the outputs of other instrument
systems having various voltage levels and grounding configurations.
Inputs can be either floating (differential) or grounded (single-ended). Chopper-stabi-
lized DC amplification with active low-pass filtering yields smooth and stable measure-
ment of the true average value of the input variable, even in the face of substantial
dynamic content.
ADDITIONAL 10A64-8C SPECIFICATIONS
Transducer Types
: 2-wire DC voltage sources, grounded or floating
Input Voltage Ranges: ±5, 10, or 20 V-DC; automatically selected—on an individual
channel basis—when the channel is configured; for the System 10 channel “type”
codes assigned to 10A64-8C data channels, see Table 1, below
Amplifier (per channel):
Normal-Mode Range: ±20 V operating; ±50 V without instrument damage
Common-Mode Range: ±20 V operating; ±50 V without instrument damage
Common-Mode Rejection Ratio: DC: -100 dB; at 60 Hz, 1 kHz, and 3 kHz: -150 dB
Input Impedance: Differential: 2 MΩ; Common-Mode: 0.5 MΩ
Offset: Initial: ±0.01% of full scale; vs. Temperature: ±10 ppm/°C; vs. Time: ±10
ppm/month
Gain Accuracy: ±0.02% of full scale
Gain Stability: vs. Temperature: ±50 ppm/°C; vs. Time: ±20 ppm/month
Filter (per channel): 3-pole modified Butterworth; 3 dB down at 7.5 Hz; 60 dB down at
100 Hz
Step-Response Settling Time (Full-Scale Output):
To 1% of final value: 150 msec
To 0.1% of final value: 190 msec
To 0.02% of final value: 200 msec
Auxiliary Outputs to Mainframe Wire-Wrap Pins: None
GENERAL DESCRIPTION AND SPECIFICATIONS 10A64-8C.1
MODEL 10A64-8C
EIGHT-CHANNEL VOLTAGE
CONDITIONER CARD
SYSTEM 10
ANALOG INPUT CARDS
1.E.2.10A64-8C
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