參數(shù)資料
型號: THS3111ID
廠商: TEXAS INSTRUMENTS INC
元件分類: 音頻/視頻放大
英文描述: 1 CHANNEL, VIDEO AMPLIFIER, PDSO8
封裝: GREEN, PLASTIC, SOIC-8
文件頁數(shù): 8/37頁
文件大小: 980K
代理商: THS3111ID
_
+
THS3110
RF
1 k
49.9
0.1
F
6.8
F
-VS
-15 V
RG
50
Source
+
VI
0.1
F
6.8
F
+
+VS
15 V
49.9
50
LOAD
1 k
SLOS422E – SEPTEMBER 2003 – REVISED OCTOBER 2009........................................................................................................................................ www.ti.com
APPLICATION INFORMATION
MAXIMUM SLEW RATE FOR REPETITIVE
SIGNALS
The THS3110 and THS3111 are recommended for
high slew rate pulsed applications where the internal
nodes of the amplifier have time to stabilize between
pulses. It is recommended to have at least 20-ns
delay between pulses.
The THS3110 and THS3111 are not recommended
for applications with repetitive signals (sine, square,
sawtooth, or other) that exceed 900 V/
μs. Using the
part in these applications results in excessive current
draw from the power supply and possible device
damage.
For applications with high slew rate, repetitive signals,
the THS3091 and THS3095 (single), or THS3092 and
THS3096 (dual) are recommended.
Figure 51. Wideband, Noninverting Gain
Configuration
WIDEBAND, NONINVERTING OPERATION
The THS3110 and THS3111 are unity-gain stable,
Current-feedback amplifiers are highly dependent on
100-MHz, current-feedback operational amplifiers,
the feedback resistor RF for maximum performance
designed to operate from a ±5-V to ±15-V power
and stability. Table 1 shows the optimal gain setting
supply.
resistors RF and RG at different gains to give
maximum bandwidth with minimal peaking in the
Figure 51 shows the THS3111 in a noninverting gain
frequency response. Higher bandwidths can be
of 2-V/V configuration typically used to generate the
achieved, at the expense of added peaking in the
performance
curves.
Most
of
the
curves
were
frequency response, by using even lower values for
characterized using signal sources with 50-
source
RF.
Conversely,
increasing
RF
decreases
the
impedance,
and
with
measurement
equipment
bandwidth, but stability is improved.
presenting a 50-
load impedance.
Table 1. Recommended Resistor Values for
Optimum Frequency Response
THS3110 AND THS3111 RF AND RG VALUES FOR MINIMAL PEAKING WITH RL = 100
GAIN (V/V)
SUPPLY VOLTAGE (V)
RG ()
RF ()
±15
1.5 k
1
±5
1.5 k
±15
1 k
2
±5
1.15 k
±15
200
806
5
±5
200
806
±15
66.5
604
10
±5
66.5
604
±15
1 k
–1
±5
1 k
–2
±15 and ±5
549
1.1 k
–5
±15 and ±5
182
909
–10
±15 and ±5
64.9
649
16
Copyright 2003–2009, Texas Instruments Incorporated
Product Folder Link(s): THS3110 THS3111
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THS3111IDGNG4 功能描述:高速運(yùn)算放大器 Single Lo-Noise Hi-Vltg Crnt-Feedbck RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
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