 |
 |
 |
 |
 |
 |
VF-4
4 Channel Buffer Amplifier |
 |
 |
| |
|
|
|

|
 |
 |
 |
 |
Featuring
a quartet of high input impedance amplifiers with unity
gain, low pass and all pass filter selection, and
low-noise battery-powered operation. Useful where a quiet
high-Z interface is required. Can be used to connect pH
electrodes or ion selective electrodes to a data
acquisition unit for recording pH or ion activity
digitally.
|
 |
| |
|
|
| |
| SPECIFICATIONS |
|
CHANNELS
|
4
channels, single-ended
|
|
INPUT
RESISTANCE
|
>1012
Ohms
|
|
INPUT
VOLTAGE
|
±
2.5 V maximum
|
|
BANDWIDTH
|
10
kHz (all pass position) - 150 Hz (low pass
position)
|
|
VOLTAGE
GAIN
|
Unity
|
|
OUTPUT
IMPEDANCE
|
<
600 Ohms
|
|
OUTPUT
NOISE
|
<
100 microvolts p/p, 10 kHz bw
|
|
OUTPUT
VOLTAGE SWING
|
±
2.5V max.
|
|
POWER
|
One
9-volt alkaline battery, supplied
|
|
BATTERY
TEST
|
Audible
tone
|
|
BATTERY
LIFE TIME
|
Up
to one year, depending on usage
|
|
DIMENSIONS
|
7
x 4 x 2.5 inches (18 x 10 x 6 cm)
|
|
SHIPPING
WEIGHT
|
3
lb (1.4 kg)
|
|
MODELS
|
|
VF4
|
4-Channel Buffer Amplifier
|
 |
|
|
 |
| Cables and Connectors
| Manual  |
 |
 |
 |
 |
 |
 |
 |
|
 |