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Analog Devices ADM1034ARQ — Discrete Semiconductors
Analog Devices

ADM1034ARQ Thermal Monitor, Fan Control, ±1°C, SMBus

MPNADM1034ARQ
End of Life

ADI ADM1034ARQ Thermal Monitor and Fan Speed Controller, ±1°C accuracy, SMBus output, internal and external sensor, 3V to 5.5V supply, -40°C to 125°C, 16-SSOP/QSOP package.

$4.16Ref. price · indicative, final on quote
ADM1034ARQ datasheet
Packaging16-SSOP (0.154", 3.90mm Width)
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.
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Specifications

ADM1034ARQ Technical Specifications
ParameterValue
Output typeSMBus
Sensor typeInternal and External
Mounting typeSurface Mount
Voltage3V ~ 5.5V
Operating temperature-40°C ~ 125°C
PackageBulk
Accuracy±1°C
FunctionFan Control, Temp Monitor
TopologyADC, Comparator, Multiplexer, Register Bank
Output fanYes
Output alarmYes
Case16-SSOP (0.154\", 3.90mm Width)
Sensing temperature-40°C ~ 125°C, External Sensor

Product details

What the ADM1034ARQ does on a thermal-management bus

The ADM1034ARQ from Analog Devices is a combined thermal monitor and fan-speed controller that reads temperature from an internal sensor and one external diode-connected transistor, then drives an SMBus output for host-side monitoring or alarm generation. It integrates an ADC, comparator, multiplexer, and register bank in a single 16-pin SSOP or QSOP package, so a single IC replaces several discrete temperature sensors and fan-control logic blocks on a server, telecom line card, or industrial controller PCB.

SMBus integration — what the output type means for the bus

The ADM1034ARQ communicates over SMBus. The output alarm pin provides a hardware interrupt on over-temperature events.

Lifecycle and sourcing posture

The RoHS status is marked non-compliant — verify your assembly house's exemption policy if the BOM requires full RoHS compliance.

Frequently asked questions

Does ADM1034ARQ work with SMBus?

Yes. The output type is SMBus, and the part includes an SMBus-compatible serial interface. The alarm output provides a hardware interrupt on over-temperature events, so the host does not need to poll the register bank continuously.

Can ADM1034ARQ be used with a 3.3V supply?

Yes. The supply voltage range is 3V to 5.5V, so a 3.3V rail is within spec. The part will operate on the same 3.3V SMBus without an additional regulator.

What is ADM1034ARQ's listed accuracy?

±1°C across the full -40°C to 125°C operating range. This covers both the internal sensor and the external diode-connected transistor input.