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參數(shù)資料
| 型號： | LT1256 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Octal D-Type Edge Triggered Flip-Flops with 3-State Outputs 20-SO 0 to 70 |
| 中文描述： | 40MHz的視頻費德和直流增益控制放大器 |
| 文件頁數(shù)： | 1/24頁 |
| 文件大?。?/td> | 474K |
| 代理商： | LT1256 |
1
LT1251/LT1256
40MHz Video Fader and
DC Gain Controlled Amplifier
TYPICAL APPLICATIO
N
U
Two-Input Video Fader
–
+
–
+
IN1
IN2
2.5VDC
INPUT
R
1.5k
V
OUT
R
1.5k
I
FS
I
C
I
C
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
C
FS
5k
5k
I
FS
LT1256
Gain Accuracy vs Control Voltage
FEATURES
I
Accurate Linear Gain Control:
±
1% Typ,
±
3% Max
I
Constant Gain with Temperature
I
Wide Bandwidth: 40MHz
I
High Slew Rate: 300V/
μ
s
I
Fast Control Path: 10MHz
I
Low Control Feedthrough: 2.5mV
I
High Output Current: 40mA
I
Low Output Noise
45nV/
√
Hz at A
V
= 1
270nV/
√
Hz at A
V
= 100
I
Low Distortion: 0.01%
I
Wide Supply Range:
±
2.5V to
±
15V
I
Low Supply Current: 13mA
I
Low Differential Gain and Phase: 0.02%, 0.02
°
APPLICATIO
S
U
I
Composite Video Gain Control
I
RGB, YUV Video Gain Control
I
Video Faders, Keyers
I
Gamma Correction Amplifiers
I
Audio Gain Control, Faders
I
Multipliers, Modulators
I
Electronically Tunable Filters
DESCRIPTIO
N
U
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.
, LTC and LT are registered trademarks of Linear Technology Corporation.
CONTROL VOLTAGE (V)
0
G
5
4
3
2
1
0
–1
–2
–3
–4
–5
2.0
1251/56 TA02
0.5
1.0
1.5
2.5
V
S
=
±
5V
V
FS
= 2.5V
100
GAIN ACCURACY (%) = A
VMEAS
–
(
)
V
C
2.5
(
)
相關PDF資料 |
PDF描述 |
|---|---|
| LT1251CS | 40MHz Video Fader and DC Gain Controlled Amplifier |
| LT1252CN8 | Low Cost Video Amplifier |
| LT1252 | Octal D-Type Edge Triggered Flip-Flops with 3-State Outputs 20-PDIP 0 to 70 |
| LT1252CS8 | Low Cost Video Amplifier |
| LT1253C | Low Cost Dual and Quad Video Amplifiers |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LT1256CN | 功能描述:IC AMP VIDEO FADE CONTRLD 14-DIP RoHS:否 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 標準包裝:1,000 系列:- 應用:驅動器 輸出類型:差分 電路數(shù):3 -3db帶寬:350MHz 轉換速率:1000 V/µs 電流 - 電源:14.5mA 電流 - 輸出 / 通道:60mA 電壓 - 電源，單路/雙路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 供應商設備封裝:20-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) |
| LT1256CN#PBF | 功能描述:IC AMP VIDEO FADE CONTRLD 14-DIP RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 標準包裝:1,000 系列:- 應用:驅動器 輸出類型:差分 電路數(shù):3 -3db帶寬:350MHz 轉換速率:1000 V/µs 電流 - 電源:14.5mA 電流 - 輸出 / 通道:60mA 電壓 - 電源，單路/雙路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 供應商設備封裝:20-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) |
| LT1256CS | 功能描述:IC AMP VIDEO FADE CONTRLD 14SOIC RoHS:否 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 標準包裝:1,000 系列:- 應用:驅動器 輸出類型:差分 電路數(shù):3 -3db帶寬:350MHz 轉換速率:1000 V/µs 電流 - 電源:14.5mA 電流 - 輸出 / 通道:60mA 電壓 - 電源，單路/雙路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 供應商設備封裝:20-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) |
| LT1256CS#PBF | 功能描述:IC AMP VIDEO FADE CONTRLD 14SOIC RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 應用:TFT-LCD 面板：VCOM 驅動器 輸出類型:滿擺幅 電路數(shù):1 -3db帶寬:35MHz 轉換速率:40 V/µs 電流 - 電源:3.7mA 電流 - 輸出 / 通道:1.3A 電壓 - 電源，單路/雙路(±):9 V ~ 20 V，±4.5 V ~ 10 V 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬）裸露焊盤 供應商設備封裝:8-uMax-EP 包裝:管件 |
| LT1256CS#PBF | 制造商:Linear Technology 功能描述:VIDEO AMPLIFIER 5 40MHZ SOI 制造商:Linear Technology 功能描述:VIDEO AMPLIFIER, 5, 40MHZ, SOIC-14 |
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