component
AD8436ARQZ-R7
Public Made by Adomby adom
Analog Devices Operational Amplifier, QSOP-20-150mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownAD8436ARQZ-R7
Analog Devices · Operational Amplifier · QSOP-20-150mil
AD8436ARQZ-R7 from Analog Devices, in a QSOP-20-150mil. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | SUM | input | Summing amplifier input pin. |
| 2 | DNC | unconnected | Do not connect; reserved for factory test and must not be connected. |
| 3 | RMS | input | AC input to the RMS core; the datasheet recommends a voltage source (0 Ω source impedance) because the pin presents an 8 kΩ voltage-to-current input resistance, and AC coupling is recommended for near-zero output offset. |
| 4 | IBUFOUT | output | FET input buffer output pin; connect to IBUFIN− for unity gain. |
| 5 | IBUFIN- | input | FET input buffer inverting input pin. |
| 6 | IBUFIN+ | input | FET input buffer non-inverting input pin; a large (10 MΩ) resistor to IGND is recommended to keep the high-impedance input from floating high. |
| 7 | IBUFGN | passive | Optional 10 kΩ precision gain resistor connection for the input buffer; ground it for 2× gain. |
| 8 | DNC | unconnected | Do not connect; reserved for factory test and must not be connected. |
| 9 | OGND | passive | Internal 16 kΩ current-to-voltage resistor connection to the RMS core output. |
| 10 | OUT | output | RMS core voltage or current output; behaves as a voltage source in series with 16 kΩ, and the ground connection is removed for current output. |
| 11 | VEE | power_in | Negative supply rail. |
| 12 | IGND | passive | Half-supply (mid-supply) node. |
| 13 | OBUFIN+ | input | Output buffer non-inverting input pin. |
| 14 | OBUFIN- | input | Output buffer inverting input pin, with a matched internal 16 kΩ precision resistor in series. |
| 15 | OBUFOUT | output | Output buffer output pin. |
| 16 | OBUFV+ | power_in | Output buffer supply pin; disconnect it (together with OBUFIN+ from OUT) to save power when the buffer is not used. |
| 17 | IBUFV+ | power_in | Input buffer supply pin; connecting it to the positive supply rail is the only required supply connection for the buffer, since the negative rail is internally connected. |
| 18 | VCC | power_in | Positive supply rail for the RMS core. |
| 19 | CCF | passive | Crest factor capacitor connection (0.1 µF typical for improved crest-factor performance). |
| 20 | CAVG | passive | Averaging capacitor connection; the averaging capacitor sets the RMS accuracy and ripple (10 µF typical), and at least 470 pF is required for stability when it is in use. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | QSOP-20-150mil |
| Category | Operational Amplifier/Comparator |
| Pins | 20 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input offset voltage (VOS), DC coupled | VOS | -500 | 0 | 500 | μV | DC coupled | 3 |
| DC flip error | -1.5 | 0 | 1.5 | % | DC coupled, VIN = ±300 mV | 3 | |
| Nonlinearity | -0.2 | 0.2 | % | eIN = 2 mV to 500 mV ac | 3 | ||
| Crest factor error (additional) | -0.5 | 0.5 | % | 1 < CF < 10, CCF = 0.1 μF | 3 | ||
| RMS core input resistance | 7.92 | 8 | 8.08 | kΩ | 3 | ||
| RMS core output resistance | 15.68 | 16 | 16.32 | kΩ | 3 | ||
| RMS core supply current | 325 | 400 | μA | no input | 3 | ||
| Input buffer offset voltage | -1 | 0 | 1 | mV | 3 | ||
| Input buffer supply current | 100 | 160 | 200 | μA | 3 | ||
| Optional gain resistance (pin IBUFGN) | -9.9 | 10 | 10.1 | kΩ | 3 | ||
| Output buffer offset voltage | -200 | 0 | 200 | μV | RL = ∞, connected to pin OUT | 3 | |
| Output buffer input current (IB) | IB | 2 | 51 | nA | maximum measured at power-up; settles to typ within 15 s | 3 | |
| Output buffer drive current | -0.5 | 15 | mA | min = sink, max = source | 3 | ||
| Output buffer gain error | 0.003 | 0.01 | % | RL = ∞ | 3 | ||
| Output buffer supply current | 40 | 70 | μA | 3 | |||
| Supply voltage, dual supply | 2.4 | 18 | V | dual supply (±VS) | 3 | ||
| Supply voltage, single supply | 4.8 | 36 | V | single supply | 3 | ||
| Supply voltage (absolute maximum) | -18 | 18 | V | 4 | |||
| Power dissipation, RQ package | 1.1 | W | RQ-20 package | 4 | |||
| Operating temperature range | -40 | 125 | °C | 4 | |||
| Storage temperature range | -65 | 125 | °C | 4 | |||
| Lead soldering temperature | 300 | °C | 60 s | 4 | |||
| Junction-to-ambient thermal resistance, RQ-20 | θJA | 95 | °C/W | worst case, device soldered to board | 4 | ||
| ESD rating | 2 | kV | model not stated | 4 |
CAD (KiCad official)
- Symbol:
AD8436ARQZ-R7 - Footprint:
Package_SO:QSOP-20_3.9x8.7mm_P0.635mm - 3D model: QSOP-20-150mil (KiCad packages3D, STEP)
- 3D model files:
ad8436arqz-r7-etched.step/ad8436arqz-r7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ad8436arqz-r7.step/ad8436arqz-r7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (20 pp, sha256
df560e244b8b695c, retrieved 2026-10-18, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).