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Analog Devices AD642LH — Logic ICs
Analog Devices

AD642LH Dual JFET Op-Amp, 3 V/µs Slew Rate, TO-99-8

MPNAD642LH
End of Life

Analog Devices AD642LH, dual JFET-input operational amplifier, 3 V/µs slew rate, 50 kHz -3 dB bandwidth, 25 pA input bias current, 500 µV input offset voltage, 25 mA output current per channel, 0°C to 70°C operating temperature, TO-99-8 metal can package, through-hole mounting.

$14.87Ref. price · indicative, final on quote
AD642LH datasheet
PackagingTO-99-8 Metal Can
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

AD642LH Technical Specifications
ParameterValue
Mounting typeThrough Hole
Amplifier typeJ-FET
Voltage - input offset500 µV
Current - input bias25 pA
Current - output (Channel)25 mA
Operating temperature0°C ~ 70°C
-3db bandwidth50 kHz
PackageBulk
Slew rate3V/µs
CaseTO-99-8 Metal Can
Number of circuits2

Product details

Dual JFET op-amp in a hermetic TO-99 can

The AD642LH is a dual JFET-input operational amplifier from Analog Devices, housed in a TO-99-8 metal can package. It offers a 3 V/µs slew rate, 50 kHz -3 dB bandwidth, and 25 pA input bias current, making it suited for precision low-frequency analog signal conditioning where low input current drift and high input impedance matter. The dual-channel configuration saves board space in multi-channel integrator, sample-and-hold, or photodiode amplifier stages.

Package and rework – the TO-99 metal can

This is a through-hole part in a TO-99-8 metal can. The hermetic seal protects the die from moisture and contaminants. Rework is straightforward with a standard soldering iron. The metal case also acts as a heat spreader, though at 25 mA output per channel thermal rise is minimal at room temperature.

However, it is marked RoHS non-compliant – the TO-99 can uses lead-bearing solder or plating. If your assembly line is RoHS-exempt (military, aerospace, medical implant, or high-reliability industrial), this is not a blocker. For commercial lead-free reflow, you will need to verify the exemption or find a tin-plated equivalent.

Frequently asked questions

What is a direct replacement or equivalent for the AD642LH?

A close functional equivalent is the AD712KNZ, also a dual JFET op-amp in a through-hole package (DIP-8). The AD712KNZ is significantly faster – 4 MHz bandwidth and 20 V/µs slew rate – but shares the same 25 pA input bias current and 500 µV offset voltage class. For a surface-mount alternative, the AD712JRZ offers the same specs in an SOIC-8 package. Neither is a pin-for-pin drop-in due to different package outlines.