USB DrDAQ User's Guide
11
Copyright © 2013 Pico Technology Ltd. All rights reserved.
usbdrdaq.en r4
2.7
Specifications and connections
2.7.1
General specifications
Number of channels
16
Maximum sampling rate
100 kHz streaming, 1 MHz block mode
Input overvoltage protection
±30 V
Digital output voltage
3.3 V
Digital output impedance
2.2 kΩ
Output connector
USB 2.0
Dimensions
77 x 70 x 23 mm (including BNC connectors)
Weight
60 g (approx 2.1 oz)
Temperature
Operating: 0 to 70°C
Storage: -20 to +80°C
Humidity
Operating: 5 to 80 %RH
non condensing
Storage: 0 to 95 %RH non
condensing
2.7.2
Input, output and sensor specifications
Channel
Signal Type
Range
Resolution
Accuracy
Sound waveform
Input
±100
±0.2
Not calibrated
Sound level
Input
55 to 100 dBA
1 dBA
5 dBA
Temperature
Input
–10 to 70°C
0.1°C @25°C
2°C @ 25°C
Light
Input
0 to 100
0.1
Not calibrated
RGB LED
Output
16.7 million
colour
8 bit x 3
N/A
pH sensor
Redox/ORP
Input
0 to 14 pH
±2 V @ 1012Ω
0.02 pH
±1.2 mV
Sensor
calibration-
dependent
Resistance
Input
0 to 1 MΩ
250 Ω @ 10 kΩ 5%
Scope (voltage)
Input
± 1.25 V
± 2.5 V
± 5 V
± 10 V
with 100 kHz
bandwidth
8 bit
3%
Digital 1
I/O*
2.2 kΩ @ 3.3 V
out, 5 V in
N/A
N/A
Digital 2
I/O*
2.2 kΩ @ 3.3 V
out, 5 V in
N/A
N/A
Digital 3
I/O*
2.2 kΩ @ 3.3 V
out, 5 V in
N/A
N/A
Digital 4
I/O*
2.2 kΩ @ 3.3 V
out, 5 V in
N/A
N/A
External 1
Input
0 to 2.5 V
1 mV
1%
External 2
Input
As Ext. 1
As Ext. 1
As Ext. 1
External 3
Input
As Ext. 1
As Ext. 1
As Ext. 1
Function
generator/AWG
Output DAC
0 to 20 kHz
0 to 1.5 V
amplitude.
±1.5 V offset.
DC to 100 kHz
running up to
2 MS/s
2 mV
10 mV
*PicoScope supports digital output only, while PicoLog and the SDK support digital
input and output.
