參數(shù)資料
型號(hào)： TLV2341Y
廠商： Texas Instruments, Inc.
英文描述： LinCMOSE PROGRAMMABLE LOW-VOLTAGE OPERATIONAL AMPLIFIERS
中文描述： LinCMOSE可編程低電壓運(yùn)算放大器
文件頁(yè)數(shù)： 49/51頁(yè)
文件大?。?/td> 748K
代理商： TLV2341Y
–
+
VO
CL
VI
2.5 V
TA = 25
°
C
f = 1 kHz
VI(PP) = 1 V
–2.5 V
–
+
RP
VDD
IF
VO
IL
IP
IP = Pullup Current
Required by the
Operational Amplifier
(typically 500
μ
A)
VO
VDD
RP
IP
IF
IL
RL
VI
R1
R2
Figure 103. Resistive Pullup to Increase V
OH
Figure 104. Test Circuit for Output Characteristics
TLV2341, TLV2341Y
LinCMOS
PROGRAMMABLE LOW-VOLTAGE
OPERATIONAL AMPLIFIERS
SLOS110A – MAY 1992 – REVISED AUGUST 1994
49
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
design be forward biased. Applied input and output voltage should not exceed the supply voltage by more that
300 mV. Care should be exercised when using capacitive coupling on pulse generators. Supply transients
should be shunted by the use of decoupling capacitors (0.1
μ
F typical) located across the supply rails as close
to the device as possible.
The current path established if latch-up occurs is usually between the positive supply rail and ground and can
be triggered by surges on the supply lines and/or voltages on either the output or inputs that exceed the supply
voltage. Once latch-up occurs, the current flow is limited only by the impedance of the power supply and the
forward resistance of the parasitic thyristor and usually results in the destruction of the device. The chance of
latch-up occurring increases with increasing temperature and supply voltages.
output characteristics
The output stage of the TLV2341 is designed to
sink and source relatively high amounts of current
(see Typical Characteristics). If the output is
subjected to a short-circuit condition, this
high-current capability can cause device damage
under certain conditions. Output current capability
increases with supply voltage.
Although the TLV2341 possesses excellent
high-level output voltage and current capability,
methods are available for boosting this capability
if needed. The simplest method involves the use
of a pullup resistor (R
P
) connected from the output
to the positive supply rail (see Figure 103). There
are two disadvantages to the use of this circuit.
First, the NMOS pulldown transistor N4 (see
equivalent schematic) must sink a comparatively
large amount of current. In this circuit, N4 behaves
like a linear resistor with an on resistance between
approximately 60
and 180
, depending on
how hard the operational amplifier input is driven.
With very low values of R
P
, a voltage offset from
0 V at the output occurs. Secondly, pullup resistor
R
P
acts as a drain load to N4 and the gain of the
operational amplifier is reduced at output voltage
levels where N5 is not supplying the output
current.
All operating characteristics of the TLV2341 are measured using a 20-pF load. The device drives higher
capacitive loads; however, as output load capacitance increases, the resulting response pole occurs at lower
frequencies thereby causing ringing, peaking, or even oscillation (see Figures 105, 106 and 107). In many
cases, adding some compensation in the form of a series resistor in the feedback loop alleviates the problem.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TLV2342 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:LinCMOSE LOW-VOLTAGE HIGH-SPEED OPERATIONAL AMPLIFIERS
TLV2342ID 功能描述:運(yùn)算放大器 - 運(yùn)放 Dual LiNCMOS 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
TLV2342IDG4 功能描述:運(yùn)算放大器 - 運(yùn)放 Dual LinCMOS(TM) Lo Vltg Hi-Spd 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
TLV2342IDR 功能描述:運(yùn)算放大器 - 運(yùn)放 Dual LinCMOS Lo-Vltg High-Speed 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
TLV2342IDRG4 功能描述:運(yùn)算放大器 - 運(yùn)放 Dual LinCMOS Lo-Vltg High-Speed 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
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