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參數資料
| 型號： | THS3121CDG4 |
| 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, MS-012AA, SOIC-8 |
| 文件頁數： | 7/35頁 |
| 文件大小： | 955K |
| 代理商： | THS3121CDG4 |
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+
THS3120
RF
649
49.9
0.1
F
6.8
F
-VS
-15 V
RG
50
Source
+
VI
0.1
F
6.8
F
+
+VS
15 V
649
49.9
50
LOAD
www.ti.com........................................................................................................................................ SLOS420E – SEPTEMBER 2003 – REVISED OCTOBER 2009
APPLICATION INFORMATION
MAXIMUM SLEW RATE FOR REPETITIVE
Current-feedback amplifiers are highly dependent on
SIGNALS
the feedback resistor RF for maximum performance
and stability. Table 1 shows the optimal gain setting
The THS3120 and THS3121 are recommended for
resistors RF and RG at different gains to give
high slew rate pulsed applications where the internal
maximum bandwidth with minimal peaking in the
nodes of the amplifier have time to stabilize between
frequency response. Higher bandwidths can be
pulses. It is recommended to have at least 20-ns
achieved, at the expense of added peaking in the
delay between pulses.
frequency response, by using even lower values for
The THS3120 and THS3121 are not recommended
RF.
Conversely,
increasing
RF
decreases
the
for applications with repetitive signals (sine, square,
bandwidth, but stability is improved.
sawtooth, or other) that exceed 900 V/
μs. Using the
part in these applications results in excessive current
Table 1. Recommended Resistor Values for
draw from the power supply and possible device
Optimum Frequency Response
damage.
THS3120 AND THS3121 RF AND RG VALUES FOR MINIMAL
PEAKING WITH RL = 50 Ω
For applications with high slew rate, repetitive signals,
SUPPLY VOLTAGE
the THS3091 and THS3095 (single), or THS3092 and
GAIN (V/V)
(V)
RG ()
RF (Ω)
THS3096 (dual) are recommended.
±15
—
806
1
WIDEBAND, NONINVERTING OPERATION
±5
—
909
±15
649
The THS3120 and THS3121 are unity-gain stable
2
±5
750
130-MHz
current-feedback
operational
amplifiers,
designed to operate from a ±5-V to ±15-V power
±15
124
499
5
supply.
±5
124
499
±15
33.2
301
Figure 47 shows the THS3121 in a noninverting gain
10
of 2-V/V configuration typically used to generate the
±5
33.2
301
Typical Characteristics. Most of the curves were
±15
681
–1
characterized using signal sources with 50-
source
±5
750
impedance,
and
with
measurement
equipment
–2
±15 and ±5
340
681
presenting a 50-
load impedance.
–5
±15 and ±5
100
499
–10
±15 and ±5
36.5
365
Figure 47. Wideband, Noninverting Gain
Configuration
Copyright 2003–2009, Texas Instruments Incorporated
15
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相關代理商/技術參數 |
參數描述 |
|---|---|
| THS3121CDGN | 功能描述:高速運算放大器 Sngl Lo-Noise Hi-Out Current-Feedback RoHS:否 制造商:Texas Instruments 通道數量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉換速度: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| THS3121CDGNG4 | 功能描述:高速運算放大器 Sngl Lo-Noise Hi-Out Current-Feedback RoHS:否 制造商:Texas Instruments 通道數量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉換速度: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| THS3121CDGNR | 功能描述:高速運算放大器 Sngl Lo-Noise Hi-Out Current-Feedback RoHS:否 制造商:Texas Instruments 通道數量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉換速度: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| THS3121CDGNRG4 | 功能描述:高速運算放大器 Sngl Lo-Noise Hi-Out Current-Feedback RoHS:否 制造商:Texas Instruments 通道數量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉換速度: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| THS3121CDR | 功能描述:高速運算放大器 Sngl Lo-Noise Hi-Out Current-Feedback RoHS:否 制造商:Texas Instruments 通道數量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉換速度: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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