參數(shù)資料
型號(hào)： CA3420AT
廠商： HARRIS SEMICONDUCTOR
元件分類(lèi)： 運(yùn)動(dòng)控制電子
英文描述： 0.5MHz, Low Supply Voltage, Low Input Current BiMOS Operational Amplifiers
中文描述： OP-AMP, 5000 uV OFFSET-MAX, 0.5 MHz BAND WIDTH, MBCY8
文件頁(yè)數(shù)： 3/6頁(yè)
文件大小： 78K
代理商： CA3420AT
3
Typical Applications
Picoammeter Circuit
The exceptionally low input current (typically 0.2pA) makes
the CA3420 highly suited for use in a picoammeter circuit.
With only a single 10G
resistor, this circuit covers the range
from
±
1.5pA. Higher current ranges are possible with suitable
switching techniques and current scaling resistors. Input
transient protection is provided by the 1M
resistor in series
with the input. Higher current ranges require that this resistor
be reduced. The 10M
resistor connected to pin 2 of the
CA3420 decouples the potentially high input capacitance
often associated with lower current circuits and reduces the
tendency for the circuit to oscillate under these conditions.
High Input Resistance Voltmeter
Advantage is taken of the high input impedance of the CA3420
in a high input resistance DC voltmeter. Only two 1.5V “AA”
type penlite batteries power this exceedingly high-input
resistance (>1,000,000M
) DC voltmeter. Full-scale deflection
is
±
500mV,
±
150mV, and
±
15mV. Higher voltage ranges are
easily added with external input voltage attenuator networks.
The meter is placed in series with the gain network, thus
eliminating the meter temperature coefficient error term.
Supply current in the standby position with the meter
undeflected is 300
μ
A. At full-scale deflection this current
rises to 800
μ
A. Carbon-zinc battery life should be in excess
of 1,000 hours.
Electrical Specifications
For Equipment Design, at V
SUPPLY
=
±
10V, T
A
= 25
o
C, Unless Otherwise Specified
PARAMETER
SYMBOL
|V
IO
|
|I
IO
|
|I
I
|
A
OL
TEST
CONDITIONS
CA3420
TYP
5
0.03
0.05
100
100
100
80
9.3
-10.3
32
90
9.9
-9.85
450
9
4
CA3420A
TYP
2
0.03
0.05
100
100
100
80
9.3
-10.3
32
90
9.9
-9.85
450
9
4
UNITS
mV
pA
pA
kV/V
dB
μ
V/V
dB
V
V
μ
V/V
dB
V
V
μ
A
mW
μ
V/
o
C
MIN
-
-
-
10
80
-
70
8.5
-10
-
70
9.7
-9.7
-
-
-
MAX
10
4
5
-
-
320
-
-
-
320
-
-
-
1000
14
-
MIN
-
-
-
20
86
-
70
9.0
-10
-
70
9.7
-9.7
-
-
-
MAX
5
4
5
-
-
320
-
-
-
320
-
-
-
1000
14
-
Input Offset Voltage
Input Offset Current (Note 4)
Input Current (Note 4)
Large Signal Voltage Gain
R
L
= 10k
Common Mode Rejection Ratio
CMRR
Common Mode Input Voltage Range
V
lCR
+
V
lCR
-
PSRR
Power Supply Rejection Ratio
V
IO
/
V
Max Output Voltage
V
OM
+
V
OM
-
I+
P
D
V
lO
/
T
R
L
=
∞
Supply Current
Device Dissipation
Input Offset Voltage Temperature Drift
NOTE:
4. The maximum limit represents the levels obtainable on high speed automatic test equipment. Typical values are obtained under laboratory conditions.
3
CA3420
4
500-0-500
μ
A
7
+1.5V
5
1
2
-1.5V
10pF
10G
10M
1M
BATTERY
RETURNS
10k
6
M
±
50pA
±
15pA
±
5pA
±
1.5pA
11k
1.5k
, 1%
1.5k
1k
430
, 1%
150
, 1%
68
1%
-
+
FIGURE 1. PICOAMMETER CIRCUIT
2
CA3420
-
4
500-0-500
μ
A
7
+1.5V
5
1
3
-1.5V
10M
22M
BATTERY
RETURNS
10k
6
M
±
500mV
±
150mV
±
50mV
±
15mV
1.1k
1.5k
, 1%
1.5k
1k
430
, 1%
150
, 1%
68
1%
+
100pF
FIGURE 2. HIGH INPUT RESISTANCE VOLTMETER
CA3420, CA3420A
相關(guān)PDF資料
PDF描述
CA3420E 0.5MHz, Low Supply Voltage, Low Input Current BiMOS Operational Amplifiers
CA3440 63kHz, Nanopower, BiMOS Operational Amplifiers
CA3440M 63kHz, Nanopower, BiMOS Operational Amplifiers
CA3450 220MHz, Video Line Driver, High Speed Operational Amplifier
CA3450E 220MHz, Video Line Driver, High Speed Operational Amplifier
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CA3420E 功能描述:IC OP AMP 0.5MHZ LOWINPUT 8-DIP RoHS:否 類(lèi)別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類(lèi)型:通用 電路數(shù):4 輸出類(lèi)型:滿擺幅 轉(zhuǎn)換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:2pA 電壓 - 輸入偏移:1000µV 電流 - 電源:85µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 6 V 工作溫度:-40°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOICN 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:680 (CN2011-ZH PDF) 其它名稱(chēng):MCP6L04T-E/SLCT
CA3420EZ 功能描述:運(yùn)算放大器 - 運(yùn)放 W/ANNEAL OPAMP 0 5MHZ LWINPUT MIL RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
CA3420S 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Analog IC
CA3420T 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Analog IC
CA3420W WAF 制造商:Harris Corporation 功能描述:
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*