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參數資料
型號: AD8607AR-REEL
廠商: ANALOG DEVICES INC
元件分類: 運動控制電子
英文描述: Precision Micropower Low Noise CMOS Rail-Rail Input/Output Operational Amplifiers
中文描述: DUAL OP-AMP, 700 uV OFFSET-MAX, 0.385 MHz BAND WIDTH, PDSO8
封裝: MS-012AA, SOIC-8
文件頁數: 12/16頁
文件大小: 1294K
代理商: AD8607AR-REEL
AD8603/AD8607/AD8609
APPLICATIONS
NO PHASE REVERSAL
The AD8603/AD8607/AD8609 do not exhibit phase inversion
even when the input voltage exceeds the maximum input
common-mode voltage. Phase reversal can cause permanent
damage to the amplifier, resulting in system lockups. The
AD8603/AD8607/AD8609 can handle voltages of up to 1 V
over the supply.
Rev. A | Page 12 of 16
0
V
TIME (4
μ
s/DIV)
V
S
= ±2.5V
V
IN
= 6V p-p
A
V
= 1
R
L
= 10k
V
IN
V
OUT
Figure 41. No Phase Response
INPUT OVERVOLTAGE PROTECTION
If a voltage 1 V higher than the supplies is applied at either
input, the use of a limiting series resistor is recommended. If
both inputs are used, each one should be protected with a series
resistor.
To ensure good protection, the current should be limited to a
maximum of 5 mA. The value of the limiting resistor can be
determined from the equation
(
V
IN
V
S
)/(
R
S
+ 200 Ω)
5
mA
DRIVING CAPACITIVE LOADS
The AD8603/AD8607/AD8609 are capable of driving large
capacitive loads without oscillating. Figure 42 shows the output
of the AD8603/AD8607/AD8609 in response to a 100 mV input
signal, with a 2 nF capacitive load.
Although it is configured in positive unity gain (the worst case),
the AD8603 shows less than 20% overshoot. Simple additional
circuitry can eliminate ringing and overshoot.
One technique is the snubber network, which consists of a
series RC and a resistive load (see Figure 43). With the snubber
in place, the AD8603/AD8607/AD8609 are capable of driving
capacitive loads of 2 nF with no ringing and less than 3%
overshoot.
The use of the snubber circuit is usually recommended for unity
gain configurations. Higher gain configurations help improve
the stability of the circuit. Figure 44 shows the same output
response with the snubber in place.
0
V
S
= ±0.9V
V
IN
= 100mV
C
L
= 2nF
R
L
= 10k
Figure 42. Output Response to a 2 nF Capacitive Load, without Snubber
C
S
47pF
V
CC
V
EE
R
S
150
200mV
C
L
V+
V
+
0
Figure 43. Snubber Network
0
V
SY
= ±0.9V
V
IN
= 100mV
C
L
= 2nF
R
L
= 10k
R
S
= 150
C
S
= 470pF
Figure 44. Output Response to a 2 nF Capacitive Load, with Snubber
Optimum values for R
S
and C
S
are determined empirically;
Table 5 lists a few starting values.
Table 5. Optimum Values for the Snubber Network
C
L
(pF)
R
S
()
100~500
500
1500
100
1600~2000
400
C
S
(pF)
680
330
100
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相關代理商/技術參數
參數描述
AD8607AR-REEL7 制造商:Analog Devices 功能描述:OP Amp Dual GP R-R I/O 制造商:Rochester Electronics LLC 功能描述:DUAL, PRECISION CMOS RAIL-RAIL OP AMP - Tape and Reel
AD8607ARZ 功能描述:IC OPAMP GP R-R CMOS DUAL 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:1 系列:MicroAmplifier™ 放大器類型:通用 電路數:4 輸出類型:- 轉換速率:3.5 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:5pA 電壓 - 輸入偏移:1500µV 電流 - 電源:220µA 電流 - 輸出 / 通道:60mA 電壓 - 電源,單路/雙路(±):4.5 V ~ 36 V,±2.25 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC(0.154",3.90mm 寬) 供應商設備封裝:14-SOIC 包裝:剪切帶 (CT) 其它名稱:296-29363-1
AD8607ARZ 制造商:Analog Devices 功能描述:OP AMP DUAL PRECISION RRI/O 8607
AD8607ARZ1 制造商:AD 制造商全稱:Analog Devices 功能描述:Precision Micropower, Low Noise CMOS, Rail-to-Rail Input/Output Operational Amplifiers
AD8607ARZ-REEL 功能描述:IC OPAMP GP R-R CMOS DUAL 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:2,500 系列:- 放大器類型:通用 電路數:1 輸出類型:滿擺幅 轉換速率:0.11 V/µs 增益帶寬積:350kHz -3db帶寬:- 電流 - 輸入偏壓:4nA 電壓 - 輸入偏移:20µV 電流 - 電源:260µA 電流 - 輸出 / 通道:20mA 電壓 - 電源,單路/雙路(±):2.7 V ~ 36 V,±1.35 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC(0.154",3.90mm 寬) 供應商設備封裝:8-SO 包裝:帶卷 (TR)
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