数据搜索系统,热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

LTC6240HS5 数据表(PDF) 19 Page - Linear Technology

部件名 LTC6240HS5
功能描述  Single/Dual/Quad 18MHz, Low Noise, Rail-to-Rail Output, CMOS Op Amps
Download  28 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC6240HS5 数据表(HTML) 19 Page - Linear Technology

Back Button LTC6240HS5 Datasheet HTML 15Page - Linear Technology LTC6240HS5 Datasheet HTML 16Page - Linear Technology LTC6240HS5 Datasheet HTML 17Page - Linear Technology LTC6240HS5 Datasheet HTML 18Page - Linear Technology LTC6240HS5 Datasheet HTML 19Page - Linear Technology LTC6240HS5 Datasheet HTML 20Page - Linear Technology LTC6240HS5 Datasheet HTML 21Page - Linear Technology LTC6240HS5 Datasheet HTML 22Page - Linear Technology LTC6240HS5 Datasheet HTML 23Page - Linear Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 19 / 28 page
background image
LTC6240/LTC6241/LTC6242
19
624012fc
APPLICATIO S I FOR ATIO
phase lead to compensate the phase lag of the second
amplifier. The op amp’s good input offset voltage match
and low input bias current means that the typical differential
output offset voltage is less than 40µV. A noise spectrum
plot of the differential output is shown in Figure 5.
source equal to the input voltage prevents such leakage
problems. The guard ring should extend as far as neces-
sary to shield the high impedance signal from any and
all leakage paths. Figure 6 shows the use of a guard ring
on the LTC6241 in a unity gain configuration. In this case
the guard ring is connected to the output and is shielding
the high impedance non-inverting input from V. Figure 7
shows the inverting gain configuration.
A Digitally Programmable AC Difference Amplifier
The LTC6241 configured as a difference amplifier, can
be combined with a programmable gain amplifier (PGA)
to obtain a low noise high speed programmable differ-
ence amplifier. Figure 8 shows the LTC6241 based as a
single-supply AC amplifier. One LTC6241 op amp is used
at the circuit’s input as a standard four resistor difference
Figure 5. Differential Output Noise
FREQUENCY (kHz)
020
60
10
40
80
30
70
50
90 100
140
60
80
100
120
0
20
40
6241 F05
VS = ±2.5V
TA = 25°C
–3dB BW = 80kHz
Achieving Low Input Bias Current
The DD package is leadless and makes contact to the PCB
beneath the package. Solder flux used during the attach-
ment of the part to the PCB can create leakage current
paths and can degrade the input bias current performance
of the part. All inputs are susceptible because the backside
paddle is connected to Vinternally. As the input voltage
changes or if Vchanges, a leakage path can be formed
and alter the observed input bias current. For lowest bias
current, use the LTC6240/LTC6241 in the SO-8 and provide
a guard ring around the inputs that are tied to a potential
near the input voltage.
Layout Considerations and a PCB Guard Ring
In high source impedance applications such as pH probes,
photodiodes, strain gauges, et cetera, the low input bias
current of these parts requires a clean board layout to
minimize additional leakage current into a high imped-
ance signal node. A mere 100GΩ of PC board resistance
between a 5V supply trace and an input trace adds 50pA
of leakage current, far greater then the input bias cur-
rent of the operational amplifier. A guard ring around the
high-impedance input traces driven by a low-impedance
Figure 6. Sample Layout. Unity Gain Configuration, Using Guard
Ring to Shield High Impedance Input from Board Leakage
Figure 7. Sample Layout. Inverting Gain Configuration, Using
Guard Ring to Shield High Impedance Input from Board Leakage
LTC6241 S8
R
OUT+
IN
IN+
V
LEAKAGE
CURRENT
NO LEAKAGE
CURRENT
GUARD
RING
NO SOLDER MASK
OVER THE GUARD RING
LTC6241 F06
LTC6241 S8
LTC6241 F07
R
R
OUT+
IN
IN+
V
VIN
GND


类似零件编号 - LTC6240HS5

制造商部件名数据表功能描述
logo
Linear Dimensions Semic...
LTC6240 LINEAR_DIMENSIONS-LTC6240 Datasheet
430Kb / 32P
   Single/Dual/Quad 18MHz, Low Noise, Rail-to-Rail Output, CMOS Op Amps
logo
Linear Technology
LTC6240 LINER-LTC6240 Datasheet
700Kb / 30P
   280MHz, 2.9ns Comparator Family with Rail-to-Rail Inputs and CMOS Outputs
logo
Linear Dimensions Semic...
LTC6240CS5-TRPBF LINEAR_DIMENSIONS-LTC6240CS5-TRPBF Datasheet
430Kb / 32P
   Single/Dual/Quad 18MHz, Low Noise, Rail-to-Rail Output, CMOS Op Amps
logo
Linear Technology
LTC6240 LINER-LTC6240_15 Datasheet
430Kb / 32P
   Single/Dual/Quad 18MHz, Low Noise, Rail-to-Rail Output, CMOS Op Amps
More results

类似说明 - LTC6240HS5

制造商部件名数据表功能描述
logo
Linear Technology
LTC6241 LINER-LTC6241_15 Datasheet
430Kb / 32P
   Single/Dual/Quad 18MHz, Low Noise, Rail-to-Rail Output, CMOS Op Amps
LTC6242 LINER-LTC6242_15 Datasheet
430Kb / 32P
   Single/Dual/Quad 18MHz, Low Noise, Rail-to-Rail Output, CMOS Op Amps
LTC6240 LINER-LTC6240_15 Datasheet
430Kb / 32P
   Single/Dual/Quad 18MHz, Low Noise, Rail-to-Rail Output, CMOS Op Amps
logo
Linear Dimensions Semic...
LTC6240CS5-TRPBF LINEAR_DIMENSIONS-LTC6240CS5-TRPBF Datasheet
430Kb / 32P
   Single/Dual/Quad 18MHz, Low Noise, Rail-to-Rail Output, CMOS Op Amps
logo
Linear Technology
LTC6241 LINER-LTC6241 Datasheet
490Kb / 24P
   Dual/Quad 18MHz, Low Noise, Rail-to-Rail, CMOS Op Amps
logo
Analog Devices
ADA4610-1 AD-ADA4610-1_16 Datasheet
750Kb / 25P
   Low Noise, Precision, Rail-to-Rail Output, JFET Single/Dual/Quad Op Amps
logo
Linear Technology
LT1678 LINER-LT1678_15 Datasheet
298Kb / 16P
   Dual/Quad Low Noise, Rail-to-Rail, Precision Op Amps
LT1679 LINER-LT1679_15 Datasheet
298Kb / 16P
   Dual/Quad Low Noise, Rail-to-Rail, Precision Op Amps
LT1678 LINER-LT1678 Datasheet
297Kb / 16P
   Dual/Quad Low Noise, Rail-to-Rail, Precision Op Amps
logo
Maxim Integrated Produc...
LMX321 MAXIM-LMX321 Datasheet
489Kb / 13P
   Single/Dual/Quad, General-Purpose, Low-Voltage, Rail-to-Rail Output Op Amps
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28


数据表 下载

Go To PDF Page


链接网址




隐私政策
ALLDATASHEETCN.COM
ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   链接交换   |   制造商名单
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com