LMH6504MA/NOPB National Semiconductor, LMH6504MA/NOPB Datasheet

IC AMP VARIABLE GAIN 8-SOIC

LMH6504MA/NOPB

Manufacturer Part Number
LMH6504MA/NOPB
Description
IC AMP VARIABLE GAIN 8-SOIC
Manufacturer
National Semiconductor
Series
LMH®r
Datasheet

Specifications of LMH6504MA/NOPB

Amplifier Type
Variable Gain
Number Of Circuits
1
Slew Rate
1500 V/µs
-3db Bandwidth
150MHz
Current - Input Bias
1.4µA
Current - Supply
11mA
Current - Output / Channel
80mA
Voltage - Supply, Single/dual (±)
7 V ~ 12 V, ±3.5 V ~ 6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Output Type
-
Gain Bandwidth Product
-
Voltage - Input Offset
-
Other names
*LMH6504MA
*LMH6504MA/NOPB
LMH6504MA
© 2006 National Semiconductor Corporation
LMH6504
Wideband, Low Power, Variable Gain Amplifier
General Description
The LMH
trolled gain stage followed by a high-speed current feedback
Op Amp which can directly drive a low impedance load. Gain
adjustment range is 80 dB for up to 10 MHz by varying the
gain control input voltage, V
Maximum gain is set by external components, and the gain
can be reduced all the way to cut-off. Power consumption is
110 mW with a speed of 150 MHz and a gain control band-
width (BW) of 150 MHz. Output referred DC offset voltage is
less than 55 mV over the entire gain control voltage range.
Device-to-device gain matching is within
mum gain. Furthermore, gain is tested and guaranteed over
a wide range. The output current feedback Op Amp allows
high frequency large signals (Slew Rate
can also drive a heavy load current (60 mA). Near ideal input
characteristics (i.e. low input bias current, low offset, low pin
3 resistance) enable the device to be easily configured as an
inverting amplifier as well (see Application Information sec-
tion for details).
To provide ease of use when working with a single supply,
V
pin potential (pin 4). V
ease drive requirement. In single supply operation, the
ground pin is tied to a "virtual" half supply.
LMH6504 gain control is linear in dB for a large portion of the
total gain control range. This makes the device suitable for
AGC applications. For linear gain control applications, see
LMH6503 data sheet.
The combination of minimal external components and small
outline packages (SO8 and MSOP8) allows the LMH6504 to
be used in space-constrained applications.
LMH
G
range is set to be from 0V to +2V relative to the ground
is a trademark of National Semiconductor Corporation.
6504 is a wideband DC coupled voltage con-
G
Gain vs. V
input impedance is high in order to
G
.
G
DS200843
±
>
0.42 dB at maxi-
1500 V/µs) and
20084311
Features
V
= A
n −3 dB BW
n Gain control BW
n Adjustment range (
n Output offset voltage
n Gain matching (limit)
n Supply voltage range
n Slew rate (inverting)
n Supply Current (no load)
n Linear Output Current
n Output Voltage Swing
n Input Noise Voltage
n Input Noise Current
n THD (20 MHz, R
n Replacement for CLC5523
Applications
n Variable attenuator
n AGC
n Voltage controlled filter
n Video imaging processing
Typical Application
S
=
VMAX
±
5V, T
= 9.7V/V, Typical values unless specified.
A
= 25˚C, R
L
= 100Ω, V
A
<
VMAX
F
10 MHz)
= 1 KΩ, R
= 9.7 V/V
O
= 2 V
G
= 100Ω, R
PP
)
September 2006
www.national.com
L
4.4 nV/
2.6 pA/
20084302
= 100Ω, A
1500 V/µs
7V to 12V
±
150 MHz
150 MHz
−45 dBc
±
±
0.42 dB
55 mV
60 mA
11 mA
±
80 dB
2.2V
V

Related parts for LMH6504MA/NOPB

LMH6504MA/NOPB Summary of contents

Page 1

... AGC applications. For linear gain control applications, see LMH6503 data sheet. The combination of minimal external components and small outline packages (SO8 and MSOP8) allows the LMH6504 to be used in space-constrained applications. Gain vs LMH is a trademark of National Semiconductor Corporation. ™ © 2006 National Semiconductor Corporation Features ± 5V 25˚ ...

Page 2

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. ESD Tolerance (Note 4): Human Body Model Machine Model Input Current Output Current + − Supply Voltages ( Voltage at Input/ Output pins Storage Temperature Range ...

Page 3

Electrical Characteristics Unless otherwise specified, all limits guaranteed for T ± 0.1V 100Ω +2V. Boldface limits apply at the temperature extremes Symbol Parameter DC & Miscellaneous Performance GACCU Gain Accuracy (See Application Note) G ...

Page 4

Electrical Characteristics Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but specific performance is not guaranteed. For guaranteed specifications, see ...

Page 5

Typical Performance Characteristics kΩ 100Ω GMAX F G Frequency Response Over Temperature Frequency Response (A Frequency Response for Various V (Large Signal) Unless otherwise specified 0.1V, input ...

Page 6

Typical Performance Characteristics kΩ 100Ω GMAX F G Gain Control Frequency Response I vs PSRR www.national.com Unless otherwise specified 0.1V, input terminated in 50Ω. ...

Page 7

Typical Performance Characteristics kΩ 100Ω GMAX Feed through Isolation for Various Gain vs. V Including Limits G Unless otherwise specified: ...

Page 8

Typical Performance Characteristics kΩ 100Ω GMAX F G Output Offset Voltage vs Distribution of Output Offset Voltage Output Noise Density vs. Frequency www.national.com Unless otherwise specified: V ...

Page 9

Typical Performance Characteristics kΩ 100Ω GMAX Input Referred Noise Density vs. Frequency Output Voltage vs. Output Current (Sourcing) HD vs. P OUT Unless otherwise specified: V ...

Page 10

Typical Performance Characteristics kΩ 100Ω GMAX F G THD vs. P OUT THD vs. Gain V Bias Current vs www.national.com Unless otherwise specified 0.1V, input ...

Page 11

Typical Performance Characteristics kΩ 100Ω GMAX Step Response Plot Gain vs. V Step G Unless otherwise specified 0.1V, input terminated in 50Ω ...

Page 12

Application Information GENERAL DESCRIPTION The key features of the LMH6504 are: • Low power • Broad voltage controlled gain and attenuation range (From A down to complete cutoff) VMAX • Bandwidth independent, resistor programmable gain range ( • ...

Page 13

Application Information GAIN ACCURACY Gain accuracy is defined as the actual gain compared against the theoretical gain at a certain V pressed in dB) (See Figure 2). Theoretical gain is given by: Eq. 3 Where K = 0.965 (nominal) N ...

Page 14

Application Information LMH6504 GAIN CONTROL FUNCTION In the plot, Gain vs can see the gain as a function of G the control voltage. The “Gain (V/V)” plot, sometimes re- ferred to as the S-curve, is the linear ...

Page 15

... Digitally variable gain control can be easily realized by driv- ing the LMH6504’s gain control input with a digital-to-analog converter (DAC). Figure 7 illustrates such an application. This circuit employs National Semiconductor’s eight-bit DAC0830, the LMC8101 MOS input op-amp (Rail-to-Rail Input/Output), and the LMH6504 VGA. With V the circuit provides gain control in 256 steps with ...

Page 16

Application Information Signal frequencies must not reach the gain control port of the LMH6504, or the output signal will be distorted (modulated by itself). A fast settling AGC needs additional filtering be- yond the integrator stage to block signal frequencies. ...

Page 17

... National Semiconductor suggests the following evaluation . Para- board as a guide for high frequency layout and as an aid in G device testing and characterization: Device LMH6504 The evaluation board is shipped when a device sample request is placed with National Semiconductor. 17 20084360 can also be isolated from L Package Evaluation Board Part Number ...

Page 18

Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 8-Pin SOIC NS Package Number M08A 8-Pin MSOP NS Package Number MUA08A 18 ...

Page 19

... BANNED SUBSTANCE COMPLIANCE National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C2) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/quality/green. ...

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