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參數(shù)資料
| 型號： | LT1806IS6 |
| 元件分類： | 運算放大器 |
| 英文描述： | Voltage-Feedback Operational Amplifier |
| 中文描述： | 電壓反饋運算放大器 |
| 文件頁數(shù)： | 17/24頁 |
| 文件大?。?/td> | 314K |
| 代理商： | LT1806IS6 |
LT1806/LT1807
17
TYPICAL APPLICATIO S
Driving A/D Converter
The LT1806/LT1807 have 60ns settling time to 0.01% on
a 2V step signal, and 20
output impedance at 100MHz,
that makes them ideal for driving high speed A/D convert-
ers. With the rail-to-rail input and output, and low supply
voltage operation, the LT1806/LT1807 are also desirable
for single supply applications. As shown in the application
on the front page of this data sheet, the LT1807 drives a
10Msps, 12-bit, LTC1420 ADC in a gain of 20. Driving the
LTC1420 differentially will optimize the signal-to-noise
ratio, SNR, and the total harmonic distortion, THD, of the
A/D converter. The lowpass filter, R5, R6 and C3 reduce
noise or distortion products that might come from the
input signal. High quality capacitors and resistors, NPO
chip capacitor and metal film surface mount resistors,
should be used since these components can add to
distortion. The voltage glitch of the converter, due to its
sampling nature is buffered by the LT1807, and the ability
of the amplifier to settle it quickly will affect the spurious
free dynamic range of the system. Figure 2 depicts the
LT1806 driving LTC1420 at noninverting gain of 2 con-
figuration. The FFT responses show a better than 92dB of
spurious free dynamic range, SFDR.
–
+
LT1806
LTC1420
PGA GAIN = 1
REF = 2.048V
5V
5V
12 BITS
10Msps
–5V
–5V
R2
1k
R1
1k
V
IN
1.5V
P-P
C1
470pF
–A
IN
18067 F02
+A
IN
R3
49.9
Figure 2. Noninverting A/D Driver
FREQUENCY (MHz)
0
–120
A
–100
–80
–60
–40
–20
0
1
2
3
4
18067 F03
5
V
S
=
±
5V
A
V
= 2
f
SAMPLE
= 10Msps
f
IN
SFDR = 92.5dB
Figure 3. 4096 Point FFT Response
SHDN Pin
The LT1806 has a SHDN pin to reduce the supply current
to less than 0.9mA. When the SHDN pin is pulled low, it will
generate a signal to power down the device. If the pin is left
unconnected, an internal pull-up resistor of 40k will keep
the part fully operating as shown in Figure 1. The output
will be high impedance during shutdown, and the turn-on
and turn-off time is less than 100ns. Because the input is
protected by a pair of back to back diodes, the input signal
will feed through to the output during shutdown mode if
the amplitude of signal between the inputs is larger than
1.4V.
APPLICATIOU
W
U
U
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LT1806IS6#PBF | 制造商:Linear Technology 功能描述:OP-AMP PRECISION 325MHZ 140 制造商:Linear Technology 功能描述:OP-AMP, PRECISION, 325MHZ, 140V/us, TSOT-23-6; Op Amp Type:Precision; No. of Amplifiers:1; Slew Rate:140V/s; Supply Voltage Range:2.5V to 12.6V; Amplifier Case Style:TSOT-23; No. of Pins:6; Bandwidth:325MHz; Package / Case:6-TSOT-23;RoHS Compliant: Yes |
| LT1806IS6#TR | 功能描述:IC OPAMP R-R IN/OUT SGL SOT23-6 RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:50 系列:LinCMOS™ 放大器類型:通用 電路數(shù):4 輸出類型:- 轉換速率:0.05 V/µs 增益帶寬積:110kHz -3db帶寬:- 電流 - 輸入偏壓:0.7pA 電壓 - 輸入偏移:210µV 電流 - 電源:57µA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):3 V ~ 16 V，±1.5 V ~ 8 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:14-SOIC 包裝:管件 產(chǎn)品目錄頁面:865 (CN2011-ZH PDF) 其它名稱:296-1834296-1834-5 |
| LT1806IS6#TRM | 功能描述:IC OPAMP R-R IN/OUT SNGL SOT236 RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:50 系列:LinCMOS™ 放大器類型:通用 電路數(shù):4 輸出類型:- 轉換速率:0.05 V/µs 增益帶寬積:110kHz -3db帶寬:- 電流 - 輸入偏壓:0.7pA 電壓 - 輸入偏移:210µV 電流 - 電源:57µA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):3 V ~ 16 V，±1.5 V ~ 8 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:14-SOIC 包裝:管件 產(chǎn)品目錄頁面:865 (CN2011-ZH PDF) 其它名稱:296-1834296-1834-5 |
| LT1806IS6#TRMPBF | 功能描述:IC OPAMP R-R IN/OUT SNGL SOT23-6 RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 產(chǎn)品培訓模塊:Differential Circuit Design Techniques for Communication Applications 標準包裝:1 系列:- 放大器類型:RF/IF 差分 電路數(shù):1 輸出類型:差分 轉換速率:9800 V/µs 增益帶寬積:- -3db帶寬:2.9GHz 電流 - 輸入偏壓:3µA 電壓 - 輸入偏移:- 電流 - 電源:40mA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-VQFN 裸露焊盤，CSP 供應商設備封裝:16-LFCSP-VQ 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:551 (CN2011-ZH PDF) 其它名稱:ADL5561ACPZ-R7CT |
| LT1806IS6#TRPBF | 功能描述:IC OPAMP R-R IN/OUT SNGL SOT23-6 RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:50 系列:LinCMOS™ 放大器類型:通用 電路數(shù):4 輸出類型:- 轉換速率:0.05 V/µs 增益帶寬積:110kHz -3db帶寬:- 電流 - 輸入偏壓:0.7pA 電壓 - 輸入偏移:210µV 電流 - 電源:57µA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):3 V ~ 16 V，±1.5 V ~ 8 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:14-SOIC 包裝:管件 產(chǎn)品目錄頁面:865 (CN2011-ZH PDF) 其它名稱:296-1834296-1834-5 |
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