參數(shù)資料
型號(hào)： OPA170AIDBVT
廠商： Texas Instruments
文件頁(yè)數(shù)： 6/34頁(yè)
文件大?。?/td> 0K
描述： IC OPAMP GP RR 1.2MHZ SOT23-5
標(biāo)準(zhǔn)包裝： 1
放大器類型： 通用
電路數(shù)： 1
輸出類型： 滿擺幅
轉(zhuǎn)換速率： 0.4 V/µs
增益帶寬積： 1.2MHz
電流 - 輸入偏壓： 8pA
電壓 - 輸入偏移： 250µV
電流 - 電源： 110µA
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 ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： SC-74A，SOT-753
供應(yīng)商設(shè)備封裝： SOT-23-5
包裝： 標(biāo)準(zhǔn)包裝
其它名稱： 296-29496-6
W
OPA170
R =
I
10kW
R
OUT
C
L
R
F
=10kW
+18V
-18V
G=
1
-
W
+18V
-18V
R
OUT
C
L
OPA170
R
L
G=+1
5kW
OPA170
10mAmax
V+
V
IN
V
OUT
I
OVERLOAD
SBOS557B – AUGUST 2011 – REVISED SEPTEMBER 2012
CAPACITIVE LOAD AND STABILITY
or even the output pin. Each of these different pin
The dynamic characteristics of the OPAx170 have
functions have electrical stress limits determined by
been optimized for common operating conditions. The
the
voltage
breakdown
characteristics
of
the
combination
of
low
closed-loop
gain
and
high
particular semiconductor fabrication process and
capacitive loads decreases the phase margin of the
specific circuits connected to the pin. Additionally,
amplifier and can lead to gain peaking or oscillations.
internal electrostatic discharge (ESD) protection is
As a result, heavier capacitive loads must be isolated
built
into
these
circuits
to
protect
them
from
from the output. The simplest way to achieve this
accidental ESD events both before and during
isolation is to add a small resistor (for example, ROUT
product assembly.
equal to 50
Ω) in series with the output. Figure 38 and
These ESD protection diodes also provide in-circuit,
Figure 39 illustrate graphs of small-signal overshoot
input overdrive protection, as long as the current is
versus capacitive load for several values of ROUT.
limited to 10mA as stated in the Absolute Maximum
Also, refer to Applications Bulletin AB-028, Feedback
Ratings. Figure 40 shows how a series input resistor
Plots Define Op Amp AC Performance (literature
may be added to the driven input to limit the input
number SBOA015, available for download from the TI
current. The added resistor contributes thermal noise
website), for details of analysis techniques and
at the amplifier input and its value should be kept to a
application circuits.
minimum in noise-sensitive applications.
Figure 40. Input Current Protection
An ESD event produces a short duration, high-
voltage pulse that is transformed into a short
duration, high-current pulse as it discharges through
a semiconductor device. The ESD protection circuits
Figure 38. Small-Signal Overshoot versus
are designed to provide a current path around the
Capacitive Load (100mV Output Step, G = +1)
operational amplifier core to prevent it from being
damaged. The energy absorbed by the protection
circuitry is then dissipated as heat.
When the operational amplifier connects into a circuit,
the ESD protection components are intended to
remain inactive and not become involved in the
application circuit operation. However, circumstances
may arise where an applied voltage exceeds the
operating voltage range of a given pin. Should this
condition occur, there is a risk that some of the
internal ESD protection circuits may be biased on,
and conduct current. Any such current flow occurs
through ESD cells and rarely involves the absorption
device.
If there is an uncertainty about the ability of the
supply to absorb this current, external zener diodes
Figure 39. Small-Signal Overshoot versus
may be added to the supply pins. The zener voltage
Capacitive Load (100mV Output Step, G = –1)
must be selected such that the diode does not turn
on during normal operation. However, its zener
voltage should be low enough so that the zener diode
ELECTRICAL OVERSTRESS
conducts if the supply pin begins to rise above the
safe operating supply voltage level.
Designers often ask questions about the capability of
an
operational
amplifier
to
withstand
electrical
overstress. These questions tend to focus on the
device inputs, but may involve the supply voltage pins
14
Copyright 2011–2012, Texas Instruments Incorporated
Product Folder Links: OPA170 OPA2170 OPA4170
相關(guān)PDF資料
PDF描述
929836-05-28 CONN HEADER .100 DUAL STR 56POS
929450-01-31-I CONN HEADER .100 SNGL STR 31POS
SQW-103-01-L-D CONN RCPT 2MM 6POS DL VERT PCB
HVCB1206JDC200M RES HV 200M OHM 5% 50PPM 1206
SQW-107-01-L-D CONN RCPT 2MM 14POS DL VERT PCB
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
OPA170AIDR 功能描述:運(yùn)算放大器 - 運(yùn)放 36V,MICROPOWER,RRO GEN PURP OP AMP 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
OPA170AIDRLR 制造商:Texas Instruments 功能描述:OP Amp Single GP R-R O/P 制造商:Texas Instruments 功能描述:OP Amp Single GP R-R O/P ±18V/36V 5-Pin SOT T/R 制造商:Texas Instruments 功能描述:IC OPAMP GP RRO 1.2MHZ SOT553-5 制造商:Texas Instruments 功能描述:36V,microPower,RRO, Gen Purp Op Amp
OPA170AIDRLT 功能描述:運(yùn)算放大器 - 運(yùn)放 36V,microPower,RRO, Gen Purp Op Amp 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
OPA170AQDBVRQ1 功能描述:IC OP AMP GP RR 1.2MHZ 5-SOT-23 制造商:texas instruments 系列:汽車級(jí)，AEC-Q100 包裝:剪切帶（CT） 零件狀態(tài):在售 放大器類型:通用 電路數(shù):1 輸出類型:滿擺幅 壓擺率:0.4 V/μs 增益帶寬積:1.2MHz 電流 - 輸入偏置:8pA 電壓 - 輸入失調(diào):250μV 電流 - 電源:110μA 電流 - 輸出/通道:17mA 電壓 - 電源，單/雙（±）:2.7 V ~ 36 V，±1.35 V ~ 18 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商器件封裝:SOT-23-5 標(biāo)準(zhǔn)包裝:1
OPA170ASDRLTEP 功能描述:運(yùn)算放大器 - 運(yùn)放 EP 36-V Sgl Supply Lo Pwr Op-Amp 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
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

*
*
*