LMH6321 - 300 mA High Speed Buffer with Adjustable Current Limit
Datasheet Packaging Samples & Pricing Reliability Models Knowledge Base

Features

High slew rate

1800 V/μs

Wide bandwidth

110 MHz

Continuous output current

±300 mA

Output current limit tolerance

±5 mA ±5%

Wide supply voltage range

5V to ±15V

Wide temperature range

−40°C to +125°C

Adjustable current limit

High capacitive load drive

Thermal shutdown error flag

General Description

The LMH6321 is a high speed unity gain buffer that slews at 1800 V/µs and has a small signal bandwidth of 110 MHz while driving a 50Ω load. More...


Applications

• Line driver
• Pin driver
• Sonar driver
• Motor control
  Typical Application
*click for larger image


ParametersValues
Output Current 300 mA
Slew Rate 1800 Volts/usec
Channels 1 Channels
Buffer Type Fixed
Av+1 BW 110 MHz
Supply Current Per Channel 10 mA
PowerWise Rating 2 90.9 uA/MHz
Gain 1 V/V
Supply Min 5 Volt
Supply Max 30 Volt
Offset Voltage max, 25C 15 mV
Max Input Bias Current 17000 nA
Voltage Noise 2.8 nV/root(Hz)
HD 2nd -57 dB
HD 3rd -59 dB
Special Features Adj Ilimit, Err Flag
Gain Bandwidth 110 MHz
Function Buffer
Temperature Min -40 deg C
Temperature Max 125 deg C


Typical Performance

click for larger image


  Connection Diagram
click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LMH6321 300 mA High Speed Buffer with Adjustable Current Limit 590
Kbytes		 10-Apr-07 Download
LMH6321 300 mA High Speed Buffer with Adjustable Current Limit (Japanese)
 973 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
LMH6321MRPSOP8NOPB3260RoHS Download Full productionLMH6321.MOD
Samples with Eval Board
Buy Now 		1K+$2.25rail
of
95		NSXYTT
LMH63
21MR
6 weeks500
LMH6321MRXPSOP8NOPB3260RoHS Download Full productionLMH6321.MOD
 
Buy Now 		1K+$2.25reel
of
2500		NSXYTT
LMH63
21MR
6 weeks7500
LMH6321TSTO-2637NOPB3245RoHS Download Full productionLMH6321.MOD
Samples with Eval Board
Buy Now 		1K+$2.25rail
of
45		NSUZXYTTE#
LMH6321TS
6 weeks100
LMH6321TSXTO-2637NOPB3245RoHS Download Full productionLMH6321.MOD
 
Buy Now 		1K+$2.25reel
of
500		NSUZXYTTE#
LMH6321TS
6 weeks1000

General Description

The LMH6321 is a high speed unity gain buffer that slews at 1800 V/µs and has a small signal bandwidth of 110 MHz while driving a 50Ω load. It can drive ±300 mA continuously and will not oscillate while driving large capacitive loads.

The LMH6321 features an adjustable current limit. The current limit is continuously adjustable from 10 mA to 300 ma with a ±5 mA ±5% accuracy. The current limit is set by adjusting an external reference current with a resistor. The current can be easily and instantly adjusted, as needed by connecting the resistor to a DAC to form the reference current. The sourcing and sinking currents share the same current limit.

The LMH6321 is available in a space saving 8-pin PSOP or a 7-pin TO-263 power package. The PSOP package features an exposed pad on the bottom of the package to increase its heat sinking capability. The LMH6321 can be used within the feedback loop of an operational amplifier to boost the current output or as a stand alone buffer.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LMH6321MRVIP III0155750012125003344050185
LMH6321MRXVIP III0155750012125003344050185
LMH6321TSVIP III0155750012125003344050185
LMH6321TSXVIP III0155750012125003344050185

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.


Application Notes

TitleSize in Kbytes Date Click link below to Download
AN-1461: Application Note 1461 LMH6321 (PSOP and TO-263) Single Open Loop High Speed Buffer Evaluation Boards 6341
Kbytes		 27-Nov-06 Download
AN-1461 (Chinese): Application Note 1461 LMH6321 (PSOP and TO-263) Single Open Loop High Speed Buffer Evaluation Boards
 509 Kbytes  

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 7-Nov-2009]