DAM50細胞外生物放大器
DAM50 Extracellular Amplifier
型號： SYS-DAM50
- 低噪音細胞外生物放大器。
- 採用高品質組件製成，確保最小化內在(散粒)雜訊。
- 電池供電，以消除線路噪音。
- 手持式。
- 可安裝於機架上。
Details
特色
差分放大(Differential Amplification)以減低噪音
可攜帶性
規格
| INPUT IMPEDANCE | 1012 ohm, common mode and differential |
| INPUT LEAKAGE CURRENT | 50pA (typical) |
| MAX. DC DIFFERENTIAL SIGNAL | ±2.5V (DAM 50) |
| GAIN | AC: 100x, 1000x, 10000x, DC: 10x, 100x, 1000x (DAM50) |
| COMMON MODE REJECTION RATIO | 100dB @ 50/60Hz |
| INPUT CAPACITANCE | 20pF |
| AC MODE NOISE | 0.4μV RMS (2uV p-p) 0.1-100Hz |
| AC MODE NOISE | 2.6μV RMS (10uV p-p) 1 Hz-10kH |
| DC MODE NOISE (DAM50) | (DAM50) 7.5uV RMS (30uV p-p) 3-10kHz |
| BANDWIDTH FILTER SETTINGS:AC Mode | Low frequency, 0.1, 1, 10, 300Hz |
| BANDWIDTH FILTER SETTINGS: DC Mode(DAM50) | High frequency, O.1, 1, 3, 10kHz |
| OUTPUT CONNECTORS | BNC on DAM50; |
| OUTPUT VOLTAGE SWING | ±8V |
| OUTPUT IMPEDANCE | 470Ω |
| BATTERY TEST | Audible tone |
| CALIBRATOR SIGNAL | 10Hz square wave |
| POSITION | Approximately 250mV |
| EXTERNAL COMMAND | Input Voltage ±10 V commands |
| AC or DC current waveform | ±50μA max. amplitude @ 200Ω |
| BATTERIES | 2 x 9V alkaline (included) |
| DIMENSIONS:DAM50 | 8 x 4 x 1.75 in. (20.3 x 10.2 x 4.4 cm) |
| SHIPPING WEIGHT | 3.5 lb (1.6 kg) |
下列DAM 50 頻寬圖表顯示放大器在使用多種濾波器和增益下的反應。
The following bandwidth charts for the DAM50 show the response of the amplifier when various filters and gains are used.
增益：上方圖表顯示標準3分貝頻率在最高過濾帶通過時切斷。
GAINS: This chart shows the standard 3dB frequency cutoff at maximum filter band pass.
過濾器：設定AC x 1000增益下使用各種低通量和高通量濾波器，以顯示DAM 50放大器的頻寬。
FILTERS: Various low pass and high pass filters were applied at the AC x1000 gain setting to show the bandwidth of and actual DAM50 amplifier.
金屬電極的差分應用
下圖顯示金屬電極的兩種應用。
第一個範例顯示EP1銀/氯化銀電極小球焊接至放大器電纜，此亦顯示一個差分組態(differential configuration)。EP1適合用於小鼠顱內應用，此種應用需用到延長線纜，將其連接到DAM 50電纜上的白綠色GND接線。
The images below show two applications for metal electrodes.
This first example shows an EP1 silver/silver chloride electrode pellet soldered to the amplifier cable. This shows a differential configuration. The EP1 is suitable for use in a mouse cranial application. To do so, it needs an extension wire to connect it to the white-green GND junction on the DAM50 cable.
第二種範例中，密封的RC1 銀/氯化銀電極小球牽線連接至放大器電纜，此亦顯示一個差分組態(differential configuration)。
In this second example, a sealed RC1Ag/AgCl electrode pellet is wired to the amplifier cable. This also shows a differential configuration.
Details
- Low noise extracellular amplifier
- Constructed of high quality components to ensure minimal intrinsic (shot) noise
- Battery operated to eliminate line noise
- Portable
- Rack mountable
