551600075-001 National Semiconductor, 551600075-001 Datasheet

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551600075-001

Manufacturer Part Number
551600075-001
Description
BOARD FOR SOIC LMH6612/19
Manufacturer
National Semiconductor
Series
WEBENCH® Buildit Boardr
Datasheets

Specifications of 551600075-001

Channels Per Ic
2 - Dual
Amplifier Type
General Purpose
Board Type
Bare (Unpopulated)
Utilized Ic / Part
LMH6612, LMH6619
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Operating Temperature
-
Output Type
-
Current - Output / Channel
-
Voltage - Supply, Single/dual (±)
-
-3db Bandwidth
-
Slew Rate
-
Current - Supply (main Ic)
-
© 2008 National Semiconductor Corporation
ADC Driver Evaluation
Boards
General Description
The ADC driver evaluation boards are designed to aid in the
characterization of National Semiconductor’s high-speed op-
erational amplifier portfolio. Utilize these evaluation boards as
guides for high frequency layout and as tools to aid in the
design of ADC driver applications.
Although specifically designed for high speed op amps, these
evaluation boards can be used for op amps in these packages
with the same pinout.
ADC Driver
Configuration
Single to Single
Single to Differential
Differential to Differential 8-Pin SOIC
Package
6-Pin SOT23
8-Pin SOIC
FIGURE 1. Single to Single ADC Driver Board Schematic
300564
Device
LMH6611MK or
LMH6618MK
LMH6612MA or
LMH6619MA
LMH6612MA or
LMH6619MA
National Semiconductor
Application Note 1812
Jason Seitz and Maithil Pachchigar
March 6, 2008
Basic Operation
Single to Single ADC Driver
This architecture has a single-ended input source connected
to the input of the op amp and the single-ended output of the
op amp can then be fed off board to the single-ended input of
an ADC. Figure 1 shows the board schematic of the single to
single ADC driver in a 2nd order multiple-feedback inverting
configuration. The inverting configuration is preferred over the
non-inverting configuration, as it offers more linear output re-
sponse. The ADC driver’s cutoff frequency is found from the
equation:
The op amp’s gain is set by the equation:
30056403
www.national.com

Related parts for 551600075-001

551600075-001 Summary of contents

Page 1

... ADC Driver Evaluation Boards General Description The ADC driver evaluation boards are designed to aid in the characterization of National Semiconductor’s high-speed op- erational amplifier portfolio. Utilize these evaluation boards as guides for high frequency layout and as tools to aid in the design of ADC driver applications. ADC Driver ...

Page 2

A sample Bill of Material (BOM) for a single to single ADC driver board is given in the table below. The ADC driver will have a cutoff frequency of 500 kHz and a gain of -1. Designator Description C 0805 ...

Page 3

FIGURE 2. Single to Differential ADC Driver Board Schematic A sample Bill of Material (BOM) for a single to differential ADC driver board is given in the table below. Designator Description C 0805 Capacitor 1 C 0805 Capacitor 2 C ...

Page 4

Differential to Differential ADC Driver A dual op amp can be configured as a differential to differential ADC driver to buffer a differential source to a differential input ADC as shown in Figure 3. The differential to differential ADC driver ...

Page 5

A sample Bill of Material (BOM) for a differential to differential ADC driver board is given in the table below. The ADC driver will have a cutoff frequency of 500 kHz and a gain of -1. Designator ...

Page 6

Single to Differential Top Layer Differential to Differential Top Layer FIGURE 4. Top and Bottom Layouts of All Three ADC Driver Configurations www.national.com 30056408 Single to Differential Bottom Layer 30056410 Differential to Differential Bottom Layer 6 30056409 30056411 ...

Page 7

7 www.national.com ...

Page 8

... For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock Conditioners www.national.com/timing Data Converters www.national.com/adc Displays www.national.com/displays Ethernet www.national.com/ethernet Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www ...

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