參數(shù)資料
型號(hào)： TLV2773QDRQ1
廠商： TEXAS INSTRUMENTS INC
元件分類： 運(yùn)算放大器
英文描述： DUAL OP-AMP, 5.1 MHz BAND WIDTH, PDSO14
封裝： SOIC-14
文件頁(yè)數(shù)： 29/45頁(yè)
文件大小： 986K
代理商： TLV2773QDRQ1
TLV277x-Q1, TLV277xA-Q1
FAMILY OF 2.7-V HIGH-SLEW-RATE RAIL-TO-RAIL OUTPUT
OPERATIONAL AMPLIFIERS WITH SHUTDOWN
SGLS179D SEPTEMBER 2003 REVISED AUGUST 2008
35
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
shutdown function
Three members of the TLV277x family (TLV2770/3/5) have a shutdown terminal for conserving battery life in
portable applications. When the shutdown terminal is tied low, the supply current is reduced to 0.8
A/channel,
the amplifier is disabled, and the outputs are placed in a high impedance mode. To enable the amplifier, the
shutdown terminal can either be left floating or pulled high. When the shutdown terminal is left floating, care
needs to be taken to ensure that parasitic leakage current at the shutdown terminal does not inadvertently place
the operational amplifier into shutdown. The shutdown terminal threshold is always referenced to VDD/2.
Therefore, when operating the device with split supply voltages (e.g.
±2.5 V), the shutdown terminal needs to
be pulled to VDD (not GND) to disable the operational amplifier.
The amplifier’s output with a shutdown pulse is shown in Figure 48 through Figure 50. The amplifier is powered
with a single 5-V supply and configured as a noninverting configuration with a gain of 5. The amplifier turnon
and turnoff times are measured from the 50% point of the shutdown pulse to the 50% point of the output
waveform. The times for the single, dual, and quad are listed in the data tables. The bump on the rising edge
of the TLV2770 output waveform is due to the start-up circuit on the bias generator. For the dual and quad
(TLV2773/5), this bump is attributed to the bias generator’s start-up circuit as well as the crosstalk between the
other channel(s), which are in shutdown.
Figure 55 and Figure 56 show the amplifier’s forward and reverse isolation in shutdown. The operational
amplifier is powered by
±1.35-V supplies and configured as a voltage follower (AV = 1). The isolation
performance is plotted across frequency for both 0.1-VPP and 2.7-VPP input signals. During normal operation,
the amplifier would not be able to handle a 2.7-VPP input signal with a supply voltage of ±1.35 V since it exceeds
the common-mode input voltage range (VICR). However, this curve illustrates that the amplifier remains in
shutdown even under a worst case scenario.
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TLV2774AID 功能描述:運(yùn)算放大器 - 運(yùn)放 Quad 2.7-V High-Slew Rate R-To-R Output 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
TLV2774AIDG4 功能描述:運(yùn)算放大器 - 運(yùn)放 Quad 2.7-V High-Slew Rate R-To-R Output 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
TLV2774AIDR 功能描述:運(yùn)算放大器 - 運(yùn)放 Quad 2.7-V High-Slew Rate R-To-R Output 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
TLV2774AIDRG4 功能描述:運(yùn)算放大器 - 運(yùn)放 Quad 2.7-V High-Slew Rate R-To-R Output 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
TLV2774AIN 功能描述:運(yùn)算放大器 - 運(yùn)放 Quad 2.7V Rail-Rail 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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