参数资料
| 型号： | AD8616AR |
| 厂商： | Analog Devices Inc |
| 文件页数： | 5/20页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP GP R-R CMOS 24MHZ 8SOIC |
| 标准包装： | 98 |
| 系列： | DigiTrim® |
| 放大器类型： | 通用 |
| 电路数： | 2 |
| 输出类型： | 满摆幅 |
| 转换速率： | 12 V/µs |
| 增益带宽积： | 24MHz |
| 电流 - 输入偏压： | 0.2pA |
| 电压 - 输入偏移： | 23µV |
| 电流 - 电源： | 1.7mA |
| 电流 - 输出 / 通道： | 150mA |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 5.5 V，±1.35 V ~ 2.75 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 管件 |
Data Sheet
AD8615/AD8616/AD8618
HIGH SPEED PHOTODIODE PREAMPLIFIER
conversions. The very low input bias, low current noise, and
high unity-gain bandwidth of the parts make them suitable,
especially for high speed photodiode preamplifiers.
In high speed photodiode applications, the diode is operated in a
photoconductive mode (reverse biased). This lowers the junction
capacitance at the expense of an increase in the amount of dark
current that flows out of the diode.
The total input capacitance, C1, is the sum of the diode and op
amp input capacitances. This creates a feedback pole that causes
degradation of the phase margin, making the op amp unstable.
Therefore, it is necessary to use a capacitor in the feedback to
compensate for this pole.
To get the maximum signal bandwidth, select
U
f
2
R
1
C
2
C
π
=
2
where fU is the unity-gain bandwidth of the amplifier.
V–
+2.5V
V+
–2.5V
R2
C2
CIN
CD
RSH
ID
–VBIAS
–
+
04648-
044
Figure 44. High Speed Photodiode Preamplifier
ACTIVE FILTERS
The low input bias current and high unity-gain bandwidth of
the AD8616 make it an excellent choice for precision filter design.
Figure 45 shows the implementation of a second-order, low-pass
filter. The Butterworth response has a corner frequency of 100 kHz
and a phase shift of 90°. The frequency response is shown in
V–
VCC
V+
VEE
2nF
1nF
1.1k
1.1k
VIN
04648-
045
Figure 45. Second-Order, Low-Pass Filter
–40
–30
–20
–10
0
10
G
A
IN
(
d
B)
1
0.1
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
04648-
046
Figure 46. Second-Order Butterworth, Low-Pass Filter Frequency Response
POWER DISSIPATION
load currents up to 150 mA, the usable output, load current,
and drive capability are limited to the maximum power dissipation
allowed by the device package.
In any application, the absolute maximum junction temperature
be exceeded because the device could suffer premature failure.
Accurately measuring power dissipation of an integrated circuit
is not always a straightforward exercise; Figure 47 is a design aid
for setting a safe output current drive level or selecting a heat
sink for the package options available on the AD8616.
PO
W
ER
D
ISSI
PA
TION
(
W)
TEMPERATURE (°C)
0
0.5
1.0
1.5
20
40
60
80
120
100
140
SOIC
MSOP
04648-
047
Figure 47. Maximum Power Dissipation vs. Ambient Temperature
These thermal resistance curves were determined using the
AD8616 thermal resistance data for each package and a
maximum junction temperature of 150°C.
Rev. F | Page 13 of 20
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD8616ARM | 制造商:Analog Devices 功能描述:OP AMP DUAL GP R-R I/O 5V 8MSOP - Bulk |
| AD8616ARM-R2 | 制造商:Analog Devices 功能描述:OP Amp Dual GP R-R I/O 5V 8-Pin MSOP T/R 制造商:Rochester Electronics LLC 功能描述:DUAL, PRECISION CMOS RAIL-RAIL OP AMP - Bulk 制造商:Analog Devices 功能描述:IC OP-AMP DUAL R/R |
| AD8616ARM-REEL | 制造商:Analog Devices 功能描述:OP Amp Dual GP R-R I/O 5V 8-Pin MSOP T/R |
| AD8616ARMZ | 功能描述:IC OPAMP GP R-R CMOS 24MHZ 8MSOP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:DigiTrim® 标准包装:1 系列:- 放大器类型:通用 电路数:4 输出类型:满摆幅 转换速率:0.028 V/µs 增益带宽积:105kHz -3db带宽:- 电流 - 输入偏压:3nA 电压 - 输入偏移:100µV 电流 - 电源:3.3µA 电流 - 输出 / 通道:12mA 电压 - 电源，单路/双路(±):2.7 V ~ 12 V，±1.35 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:剪切带 (CT) 其它名称:OP481GRUZ-REELCT |
| AD8616ARMZ1 | 制造商:AD 制造商全称:Analog Devices 功能描述:Precision, 20 MHz, CMOS, Rail-to-Rail Input/Output Operational Amplifiers |
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