AD654JRZ-REEL7

@@ -0,0 +1,51 @@+# AD654JRZ-REEL7++**Analog Devices** · V/F And F/V Converters · SOIC-8++AD654JRZ-REEL7 from Analog Devices, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | FOUT | output | Open-collector square-wave frequency output. Sinks >10 mA at <0.4 V saturation; requires an external pull-up resistor (RPU) to VLOGIC. Output current is internally limited to ~25 mA sustained. |+| 2 | LOGIC COMMON | power_in | Emitter reference for the open-collector output transistor. Can be tied to any level between -VS (or ground) and (+VS - 4 V), allowing direct interface to positive or negative logic families. Logic Common to -VS range: -500 mV to (+VS - 4 V). |+| 3 | RT | passive | Timing/scaling resistor node. External RT sets the 1 mA full-scale drive current from the input amplifier via VIN/(R1+R2). Maximum input voltage on this pin: -300 mV to +VS. |+| 4 | +VIN | input | Noninverting analog input to the internal op-amp/V-to-I converter. Input range: 0 to (+VS - 4 V) single-supply, or -VS to (+VS - 4 V) dual-supply. Input resistance 250 MΩ typ, input bias current 30 nA typ. |+| 5 | -VS | power_in | Negative supply pin. Tie to ground for single-supply operation (5 V to 36 V total), or to a negative rail for dual-supply operation (±5 V to ±18 V). |+| 6 | CT | passive | Timing capacitor terminal (one side of external CT). Together with pin 7 sets the full-scale oscillator frequency per f = V/(10·RC). Use low-DA capacitors (polystyrene, polypropylene, or Teflon) for best linearity. |+| 7 | CT | passive | Timing capacitor terminal (other side of external CT). Together with pin 6 sets the full-scale oscillator frequency per f = V/(10·RC). |+| 8 | +VS | power_in | Positive supply pin. Single-supply range 4.5 V to 36 V; dual-supply range +5 V to +18 V. Total supply +VS to -VS must not exceed 36 V. Quiescent current 2.0 mA typ. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Analog Devices |+| Package | SOIC-8 |+| Category | Data Acquisition |+| Pins | 8 |++## Ordering variants++Same part, different packaging or reel option.++- `AD654JRZ-REEL7`+- `AD654JRZ-REEL7JN`+- `AD654JRZ-REEL7JNZ`++## CAD (KiCad official)++- Symbol: `AD654JRZ-REEL7`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Analog Devices datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586186278605479936) (12 pp, sha256 `10e9b378fefec99b`, retrieved 2026-08-17, tier: lcsc)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/ad654jrz-reel7-datasheet.pdf)

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