參數(shù)資料
型號(hào)： LT1256CS#PBF
廠商： Linear Technology
文件頁(yè)數(shù)： 1/24頁(yè)
文件大?。?/td> 0K
描述： IC AMP VIDEO FADE CONTRLD 14SOIC
標(biāo)準(zhǔn)包裝： 55
應(yīng)用： 電流反饋
電路數(shù)： 1
-3db帶寬： 40MHz
轉(zhuǎn)換速率： 300 V/µs
電流 - 電源： 14.5mA
電流 - 輸出 / 通道： 40mA
電壓 - 電源，單路/雙路(±)： 5 V ~ 30 V，±2.5 V ~ 15 V
安裝類型： 表面貼裝
封裝/外殼： 14-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 14-SOIC
包裝： 管件
產(chǎn)品目錄頁(yè)面： 1318 (CN2011-ZH PDF)
1
LT1251/LT1256
40MHz Video Fader and
DC Gain Controlled Amplifier
TYPICAL APPLICATION
U
Two-Input Video Fader
–
+
–
+
IN1
IN2
2.5VDC
INPUT
RF2
1.5k
VOUT
RF1
1.5k
IFS
IC
V+
V–
NULL
1251/56 TA01
0V TO 2.5V
CONTROL
2
–
+
–
+
1
2
3
4
5
6
7
14
13
12
11
10
9
8
CONTROL
LT1251/LT1256
1
CFS
5k
IFS
LT1256
Gain Accuracy vs Control Voltage
FEATURES
DESCRIPTION
U
s
Accurate Linear Gain Control:
±1% Typ, ±3% Max
s
Constant Gain with Temperature
s
Wide Bandwidth: 40MHz
s
High Slew Rate: 300V/
s
Fast Control Path: 10MHz
s
Low Control Feedthrough: 2.5mV
s
High Output Current: 40mA
s
Low Output Noise
45nV/
√Hz at AV = 1
270nV/
√Hz at AV = 100
s
Low Distortion: 0.01%
s
Wide Supply Range:
±2.5V to ±15V
s
Low Supply Current: 13mA
s
Low Differential Gain and Phase: 0.02%, 0.02
°
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIONS
U
s
Composite Video Gain Control
s
RGB, YUV Video Gain Control
s
Video Faders, Keyers
s
Gamma Correction Amplifiers
s
Audio Gain Control, Faders
s
Multipliers, Modulators
s
Electronically Tunable Filters
The LT
1251/LT1256 are 2-input, 1-output, 40MHz cur-
rent feedback amplifiers with a linear control circuit that
sets the amount each input contributes to the output.
These parts make excellent electronically controlled vari-
able gain amplifiers, filters, mixers and faders. The only
external components required are the power supply by-
pass capacitors and the feedback resistors. Both parts
operate on supplies from
±2.5V (or single 5V) to ±15V
(or single 30V).
Absolute gain accuracy is trimmed at wafer sort to mini-
mize part-to-part variations. The circuit is completely
temperature compensated.
The LT1251 includes circuitry that eliminates the need for
accurate control signals around zero and full scale. For
control signals of less than 2% or greater than 98%, the
LT1251 sets one input completely off and the other
completely on. This is ideal for fader applications because
it eliminates off-channel feedthrough due to offset or gain
errors in the control signals.
The LT1256 does not have this on/off feature and operates
linearly over the complete control range. The LT1256 is
recommended for applications requiring more than 20dB
of linear control range.
CONTROL VOLTAGE (V)
0
GAIN
ACCURACY
(%)
5
4
3
2
1
0
–1
–2
–3
–4
–5
2.0
1251/56 TA02
0.5
1.0
1.5
2.5
VS = ±5V
VFS = 2.5V
100
GAIN ACCURACY (%) = AVMEAS –
()VC
2.5 ()
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參數(shù)描述
LT1259 制造商:LINER 制造商全稱:Linear Technology 功能描述:Low Cost Dual and Triple 130MHz Current Feedback Amplifiers with Shutdown
LT1259CN 制造商:Linear Technology 功能描述:AMP DUAL CURRENT F/BACK 1259 DIP
LT1259CN#PBF 功能描述:IC AMP W/SHUTDOWN DUAL 14-DIP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:LinCMOS™ 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)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(yīng)商設(shè)備封裝:14-SOIC 包裝:管件 產(chǎn)品目錄頁(yè)面:865 (CN2011-ZH PDF) 其它名稱:296-1834296-1834-5
LT1259CS 功能描述:IC AMP W/SHUTDOWN DUAL 14-SOIC RoHS:否 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:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:2pA 電壓 - 輸入偏移:1000µV 電流 - 電源:85µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 6 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOICN 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:680 (CN2011-ZH PDF) 其它名稱:MCP6L04T-E/SLCT
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