參數(shù)資料
型號(hào): LTC6253CTS8#TRMPBF
廠商: Linear Technology
文件頁數(shù): 9/26頁
文件大?。?/td> 0K
描述: IC OPAMP R-R 720MHZ TSOT23-8
標(biāo)準(zhǔn)包裝: 1
放大器類型: 通用
電路數(shù): 2
輸出類型: 滿擺幅
轉(zhuǎn)換速率: 280 V/µs
增益帶寬積: 720MHz
-3db帶寬: 400MHz
電流 - 輸入偏壓: 1.4µA
電壓 - 輸入偏移: 100µV
電流 - 電源: 4.25mA
電流 - 輸出 / 通道: 100mA
電壓 - 電源,單路/雙路(±): 2.5 V ~ 5.25 V,±1.25 V ~ 2.625 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: SOT-23-8 薄型,TSOT-23-8
供應(yīng)商設(shè)備封裝: TSOT-23-8
包裝: 標(biāo)準(zhǔn)包裝
其它名稱: LTC6253CTS8#TRMPBFDKR
LTC6252/LTC6253/LTC6254
17
625234fc
Low Noise Gain Block Using Channels in Parallel
Figure 5 shows the LTC6254 configured as a low noise
gain block. By configuring each channel as a gain of 10
block and putting all four gain blocks in parallel, the input
referred noise can be reduced significantly. 22Ω resistors
are hooked up to the outputs of each of the channels to
ensure even distribution of load currents.For a total sup-
ply current of 13.2mA, measured input referred noise
density (including contributions from the resistors) be-
tween 100kHz and 10MHz was less than 1.6nV/√Hz, with
input referred noise density at 1 MHz being 1.5nV/√Hz.
The measured –3dB frequency was 37MHz for a load
resistance of 1k.
TYPICAL APPLICATIONS
Multiplexing Channels
The LTC6252 and LTC6253 are available with shutdown
pins in the SOT-23 and MS10 packages. While this allows
for reduced power consumption, it also makes the parts
suitable for high output impedance applications such as
muxing. During shutdown, the bases of the amplifier’s
output channels are hard tied to their emitters in order to
minimizeleakage.Figure6showstheLTC6253appliedasa
mux,withtheoutputssimplyshortedtogether. Depending
on which device is powered, either the VA or the VB input
is buffered to VOUT. The MOSFET Q1 provides a simple
logic inversion, so that pulling the gate high selects the
B path while the FET drain goes low shutting down the A
path. R3 is provided to speed up the drain rise time. The
LTC6253 turn-on time is longer than the turn-off time
(3.5s vs < 2s) avoiding cross conduction in the output
Figure 5. Low Noise Gain Block Using Parallel Channels
Figure 6. Multiplexing Channels
LTC6254
+
1pF
2.5V
–2.5V
900
100
22
LTC6254
+
1pF
900
100
22
LTC6254
+
1pF
900
100
22
LTC6254
+
1pF
900
100
VIN
22
VOUT
625234 F05
625234 F06
+
5V
SHDNA
SHDNB
VA
LTC6253
R1
330
+
VB
5V
Q1
2N7002
SEL_B
LTC6253
R2
330
R3
20k
VOUT
相關(guān)PDF資料
PDF描述
68046-231LF CONN RCPT 62POS .100" DBL SMD
953474-6602-AR CONN SOCKET 74POS 2MM VERT DUAL
69154-332LF CONN RCPT 64POS .100" DBL SMD
SSQ-150-03-S-S-RA CONN RCPT .100" 50POS R/A SGL AU
960250-8100-AR-TP CONN SOCKET 50POS 2ROW BRDMT SMD
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC6253HMS8#PBF 功能描述:IC OPAMP R-R 720MHZ 8-MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:45nA 電壓 - 輸入偏移:2000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:40mA 電壓 - 電源,單路/雙路(±):3 V ~ 32 V,±1.5 V ~ 16 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP(0.173",4.40mm 寬) 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) 其它名稱:LM324ADTBR2G-NDLM324ADTBR2GOSTR
LTC6253HMS8#TRPBF 功能描述:IC OPAMP RR 720MHZ 8MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.028 V/µs 增益帶寬積:105kHz -3db帶寬:- 電流 - 輸入偏壓:3nA 電壓 - 輸入偏移:100µV 電流 - 電源:3.3µA 電流 - 輸出 / 通道:12mA 電壓 - 電源,單路/雙路(±):2.7 V ~ 12 V,±1.35 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP(0.173",4.40mm 寬) 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:剪切帶 (CT) 其它名稱:OP481GRUZ-REELCT
LTC6253HTS8#TRMPBF 功能描述:IC OPAMP R-R 720MHZ TSOT23-8 RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.028 V/µs 增益帶寬積:105kHz -3db帶寬:- 電流 - 輸入偏壓:3nA 電壓 - 輸入偏移:100µV 電流 - 電源:3.3µA 電流 - 輸出 / 通道:12mA 電壓 - 電源,單路/雙路(±):2.7 V ~ 12 V,±1.35 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP(0.173",4.40mm 寬) 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:剪切帶 (CT) 其它名稱:OP481GRUZ-REELCT
LTC6253HTS8#TRPBF 功能描述:IC OPAMP R-R 720MHZ TSOT23-8 RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.028 V/µs 增益帶寬積:105kHz -3db帶寬:- 電流 - 輸入偏壓:3nA 電壓 - 輸入偏移:100µV 電流 - 電源:3.3µA 電流 - 輸出 / 通道:12mA 電壓 - 電源,單路/雙路(±):2.7 V ~ 12 V,±1.35 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP(0.173",4.40mm 寬) 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:剪切帶 (CT) 其它名稱:OP481GRUZ-REELCT
LTC6253IDC#PBF 制造商:Linear Technology 功能描述:SC-Amps/High Speed, Cut Tape 800MHz, 3.5mA Power Efficient Rail-to-Rail I/O Op A