Biological Sciences 300/301, Smith College | Neurophysiology
Appendix: DAM 50 Preamplifier
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DAM SERIES SPECIFICATIONS |
|
|---|---|
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INPUT IMPEDANCE |
1012 Ohms, common mode and differential |
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INPUT LEAKAGE CURRENT |
50 pA (typical) |
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MAX. DC DIFFERENTIAL SIGNAL |
± 2.5 V (DAM 50, 60, 70) |
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GAIN |
AC: 100x, 1000x,
10000x |
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COMMON MODE REJECTION RATIO |
100 dB @ 50/60 Hz |
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EQUIVALENT NOISE SIGNAL INPUT |
|
|
AC Mode |
0.4 µV RMS (2
µV p-p) 0.1-100 Hz |
|
DC Mode (DAM50, -60, -70) |
6.0 µV RMS (30 µV p-p) 3-10 kHz |
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BANDWIDTH FILTER SETTINGS |
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|
AC Mode |
Low frequency, 0.1, 1, 10, 300 Hz |
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DC Mode (DAM50, -60, -70) |
High frequency, 0.1, 1, 3, 10 kHz |
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OUTPUT VOLTAGE SWING |
±8 V |
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OUTPUT RESISTANCE |
470 Ohms |
|
BATTERY TEST |
Audible tone |
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CALIBRATOR SIGNAL |
10 Hz square wave |
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EXTERNAL COMMAND |
Input Voltage ±10 V commands |
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AC or DC current waveform |
(DAM80: nonlinear) |
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Replicas to ±50 µA max amplitude |
(DAM50, -60, -70) |
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BATTERIES |
2 x 9 V alkaline (included) |
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DIMENSIONS |
|
|
DAM50, DAM80 |
7 x 4 x 1.75 in. (17.8 x 10.2 x 4.4 cm) |
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SHIPPING WEIGHT |
3.5 lb (1.6 kg) |
Data from World Precision Instruments, Inc.