LMH6503 - Wideband, Low Power, Linear Variable Gain Amplifier
Datasheet Packaging Samples & Pricing Reliability Design Tools Models Application Notes Knowledge Base

Features

VS = ±5V, TA = 25°C, RF = 1k, RG = 174, RL = 100, AV = AV(MAX) = 10, Typical values unless specified.

-3dB BW

135MHz

Gain control BW

100MHz

Adjustment range (typical over temp)

70dB

Gain matching (limit)

±0.7dB

Slew rate

1800V/µs

Supply current (no load)

37mA

Linear output current

±75mA

Output voltage (RL = 100)

±3.2V

Input voltage noise

6.6nV/

Input current noise

2.4pA/

THD (20MHz, RL = 100, VO = 2VPP)

-57dBc

Replacement for CLC522

  

General Description

The LMH™6503 is a wideband DC coupled differential input voltage controlled gain stage followed by a high-speed current feedback Op Amp which can directly drive a low impedance load. More...


Applications

•Variable attenuator
•AGC
•Voltage controller filter
•Multiplier
  Typical Application
click for larger image


ParametersValues
Gain Adjust Range 70 dB
Analog Control BW 100 MHz
Signal Channel BW 135 MHz
Supply Min 5 Volt
Supply Max 12 Volt
Gain Control Interface Voltage
Slew Rate 1800 Volts/usec
Supply Current 37 mA
PowerWise Rating 2 274 uA/MHz
Output Current 90 mA
Offset Voltage max, 25C 370 mV
Max Input Bias Current 20000 nA
Voltage Noise 6.6 nV/root(Hz)
HD 2nd -60 dB
HD 3rd -61 dB
Diff Gain 0.15 dB
Diff Phase 0.22 %
Special Features Differential Input
Function VGA
Temperature Min -40 deg C
Temperature Max 85 deg C


Typical Performance

click for larger image


 
Additional Resources
Design Tools

Application Notes


Block Diagram

click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LMH6503 Wideband, Low Power, Linear Variable Gain Amplifier 1009
Kbytes		 25-Jun-04 Download
LMH6503 Wideband, Low Power, Linear Variable Gain Amplifier (Japanese)
 792 Kbytes   Download

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Package Availability, Models, Samples & Pricing
Part NumberPackageFactory Lead TimeModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
Format
TypePinsSpec.MSL
Rating		Peak
Reflow		RoHS
Report		CAD
Symbols		WeeksQtyQty$US each
LMH6503MASOIC NARROW14NOPB
STD		1
1		260
235		RoHS Download Full productionLMH6503.MOD
Samples with Eval Board
Buy Now 		1K+$3.48rail
of
55		NSUZXYTTE#
LMH6503MA
6 weeks500
LMH6503MAXSOIC NARROW14NOPB
STD		1
1		260
235		RoHS Download Full productionLMH6503.MOD
 
Buy Now 		1K+$3.48reel
of
2500		NSUZXYTTE#
LMH6503MA
6 weeks7500
LMH6503MTTSSOP14NOPB1260RoHS Download Full productionLMH6503.MOD
 
Buy Now 		1K+$3.48rail
of
94		NSUZXYTT
LMH65
03MT
6 weeks500
LMH6503MTXTSSOP14NOPB1260RoHS Download Full productionLMH6503.MOD
 
Buy Now 		1K+$3.48reel
of
2500		NSUZXYTT
LMH65
03MT
6 weeks5000

General Description

The LMH™6503 is a wideband DC coupled differential input voltage controlled gain stage followed by a high-speed current feedback Op Amp which can directly drive a low impedance load. Gain adjustment range is more than 70dB for up to 10MHz.

Maximum gain is set by external components and the gain can be reduced all the way to cut-off. Power consumption is 370mW with a speed of 135MHz . Output referred DC offset voltage is less than 350mV over the entire gain control voltage range. Device-to-device Gain matching is within 0.7dB at maximum gain. Furthermore, gain at any VG is tested and the tolerance is guaranteed. The output current feedback Op Amp allows high frequency large signals (Slew Rate = 1800V/µs) and can also drive heavy load current (75mA). Differential inputs allow common mode rejection in low level amplification or in applications where signals are carried over relatively long wires. For single ended operation, the unused input can easily be tied to ground (or to a virtual half-supply in single supply application). Inverting or non-inverting gains could be obtained by choosing one input polarity or the other.

To further increase versatility when used in a single supply application, gain control range is set to be from -1V to +1V relative to pin 11 potential (ground pin). In single supply operation, this ground pin is tied to a "virtual" half supply. Gain control pin has high input impedance to simplify its drive requirement. Gain control is linear in V/V throughout the gain adjustment range. Maximum gain can be set to be anywhere between 1V/V to 100V/V or higher. For linear in dB gain control applications, see LMH6502 datasheet.

The LMH6503 is available in the SOIC-14 and TSSOP-14 package.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LMH6503MAVIP 100128010011550004327734403
LMH6503MAXVIP 100128010011550004327734403
LMH6503MTVIP 100128010011550004327734403
LMH6503MTXVIP 100128010011550004327734403

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.


Design Tools

TitleSize in Kbytes Date Click link below to Download    
CLC730033 SOIC-14 Evaluation Board - Included with LMH6503MA Sample Order 325 Kbytes 2-Feb-04 View Online Download  

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More Application Notes

TitleSize in Kbytes Date Click link below to Download
AN-1808: Application Note 1808 LMH730033 Evaluation Board 683
Kbytes		 3-Mar-08 Download

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[Information as of 7-Nov-2009]