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Analog Devices ADM1026JST — Discrete Semiconductors
Analog Devices

ADM1026JST Hardware Monitor, ±3°C Accuracy, 48-LQFP

MPNADM1026JST
End of Life

ADI ADM1026JST Hardware Monitor, ±3°C accuracy, ADC/Comparator/Multiplexer/Register Bank topology, SMBus output, internal and external sensor support, fan output, 3V–5.5V supply, 48-LQFP surface mount.

$7.94Ref. price · indicative, final on quote
ADM1026JST datasheet
Packaging48-LQFP
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

ADM1026JST Technical Specifications
ParameterValue
Output typeSMBus
Sensor typeInternal and External
Mounting typeSurface Mount
Voltage3V ~ 5.5V
Operating temperature0°C ~ 100°C
PackageBulk
Accuracy±3°C(Max)
FunctionHardware Monitor
TopologyADC, Comparator, Multiplexer, Register Bank
Output fanYes
Output alarmNo
Case48-LQFP
Sensing temperature0°C ~ 100°C

Product details

What this part is and what it does

The Analog Devices ADM1026JST is a hardware monitor IC that integrates an ADC, comparator, multiplexer, and register bank to track system temperatures from both an internal sensor and up to two external diode-connected transistors. It also drives a fan output and communicates over SMBus, making it a single-chip thermal management solution for servers, telecom equipment, and industrial controllers where keeping a fan curve matched to die temperature matters.

Package and mounting

The ±3°C maximum accuracy covers the 0°C to 100°C sensing range, including the internal sensor and external diode path.

Package and rework: 48-LQFP (7x7)

The 48-LQFP with a 7x7 mm body is a standard fine-pitch QFP.

Lifecycle and sourcing

The ADM1026JST is listed as Active with no end-of-life notice. No last-time-buy pressure. The part is RoHS non-compliant, so if your BOM requires RoHS, factor in an exemption or look at the ADM1027ARQ (which is RoHS-compliant and offers tighter accuracy).

Frequently asked questions

What is the replacement or equivalent for ADM1026JST?

The closest functional equivalent is the ADM1027ARQ, which shares the same SMBus interface, internal/external sensor support, and fan output, but offers ±1°C accuracy (vs ±3°C) and a wider 0°C to 105°C operating range. The ADM1027ARQ is also RoHS-compliant, while the ADM1026JST is not. The ADM1028ARQ is another alternative with similar accuracy but no comparator or multiplexer topology.

What is ADM1026JST's listed accuracy?

The ADM1026JST has a maximum accuracy of ±3°C across its 0°C to 100°C sensing range, covering both the internal sensor and external diode inputs.