Specifications, Logbook specifications, General – Measurement Computing LogBook Series User Manual
Page 25: A/d specifications, Analog inputs, Triggering

LogBook User’s Manual
969591
An Introduction to LogBook 1-15
LogBook Specifications
Specifications are subject to change without notice.
General
Supply Voltage Range: 10 to 45.0 VDC
Power Consumption: 0.9 A @ 15 VDC
Operating Temperature: -40° to 140°F (-40°C to 60°C)
Storage Temperature: -40° to 176°F (-40°C to 80°C)
Humidity: 0 to 95% RH, non-condensing
PC-Card Memory: Standard ATA Type
LogBook/300:
Size: 8½ × 11 × 1¾ in. (216 × 279 × 44 mm)
Weight: 3.3 lb (1.5 kg)
LogBook/360:
Size: 14 × 11 × 3.5 in. (356 x 279 × 89 mm)
Weight: 7.3 lb (3.3 kg)
A/D Specifications
Type: Successive approximation
Resolution: 16 bit
Conversion Time: 10 µs
Monotinicity: No missing codes
Linearity: ±1 bit
Analog Inputs
Channels: 16 single-ended, 8 differential,
expandable up to 256 differential; single-
ended or differential operation is software
programmable.
Connector: DB37 male, P1
Maximum Overvoltage: -35 V, +45 V
Input Current:
Differential: 0.4 µA typical, 0.7 µA max
Single-ended: 0.2 µA typical, 0.35 µA max
Input Impedance:
10 M
differential in parallel with 20 pF
5 M
single-ended in parallel with 30 pF
Calibration: Digital software calibration
Channel-to-channel Crosstalk: 100 dB
Ranges: Unipolar/Bipolar operation is software-programmable
on a per-channel basis.
BIPOLAR
±10V
±5V
±2.5V
±1.25V
±0.625V
±0.3125V
±0.15625V
±(% Reading + µV)
0.015 + 500
0.015 + 500
0.015 + 300
0.015 + 250
0.015 + 150
0.020 + 150
0.050 + 100
UNIPOLAR
0 to +20V
0 to +10V
0 to +5V
0 to +2.5V
0 to +1.25V
0 to +0.625V
0 to +0.3125V
±(% Reading + µV)
0.015 + 500
0.015 + 500
0.015 + 300
0.015 + 250
0.015 + 150
0.020 + 150
0.050 + 100
Triggering
Analog Trigger:
Programmable Level Range: full range of
specified channel
Trigger to A/D Latency: 10 µs max
Digital Trigger:
Logic Level Range: 0.8 V low/2.2 V high
Trigger to A/D Latency: 10 µs max
Software Trigger:
Trigger to A/D Latency: Dependent on PC
Pre-Trigger: Up to 4 gig scans, depends on
PC-card memory