# ZJA3669ASABR

**ZJW** · Differential Amplifiers · SOIC-8

ZJA3669ASABR from ZJW, in a SOIC-8. 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 | REF- | input | Reference input; ground for unity gain and connect to the same low-impedance ground plane as REF+, since series resistance degrades CMRR. |
| 2 | -IN | input | Inverting analog input with common-mode range of ±270 V and maximum differential range of ±14.7 V. |
| 3 | +IN | input | Non-inverting analog input with common-mode range of ±270 V and maximum differential range of ±14.7 V. |
| 4 | V- | power_in | Negative power supply; supply voltage VS from ±2.25 V to ±18 V is applied between pin 7 and pin 4, decoupled with 0.1 µF. |
| 5 | REF+ | input | Reference input; ground for unity gain and connect to the same low-impedance ground plane as REF-, or drive from a low-impedance reference in single-supply use. |
| 6 | OUT | output | Analog output with rail-to-rail swing, 50 mA source and 90 mA sink short-circuit current, and drives up to 10 nF capacitive load. |
| 7 | V+ | power_in | Positive power supply; supply voltage VS from ±2.25 V to ±18 V is applied between pin 7 and pin 4, decoupled with 0.1 µF. |
| 8 | NC | unconnected | No internal connection; should be left open. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ZJW |
| Package | SOIC-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Gain Error | GE |  | 0.002 | 0.01 | %FSR | VOUT = ± 10 V | 6 |
| Gain vs Temperature | ΔG/ΔT |  | 1 | 3 | ppm/° C | VOUT = ± 10 V, over temperature | 6 |
| Nonlinearity | GN |  | 0.0005 | 0.001 | %FSR | VOUT = -10 V to +10 V | 6 |
| Initial Offset Voltage | VOS |  | 200 | 750 | µV |  | 6 |
| Offset Voltage vs Temperature | ΔVOS/ΔT |  | 3 | 15 | µV/° C | over temperature | 6 |
| Power Supply Rejection Ratio | PSRR | 90 | 120 |  | dB | VS = ± 2.25 V to ± 18 V | 6 |
| Input Voltage Range, Differential | IVR | -14.7 |  | 14.7 | V | Differential | 6 |
| Input Voltage Range, Common-mode | IVR | -270 |  | 270 | V | Common-mode | 6 |
| CMRR at dc | CMRR | 90 | 100 |  | dB | At dc, VCM = ± 250 V | 6 |
| CMRR at dc over temperature | CMRR | 84 |  |  | dB | At dc, VCM = ± 250 V, over temperature | 6 |
| CMRR at ac 500 Hz | CMRR | 90 |  |  | dB | At ac, 500 Hz, VCM = 500 VP-P | 6 |
| CMRR at ac 1 kHz | CMRR | 90 |  |  | dB | At ac, 1 kHz, VCM = 500 VP-P | 6 |
| Output Voltage Range |  | -14.7 |  | 14.7 | V |  | 6 |
| Output Voltage Range over temperature |  | -14.5 |  |  | V | over temperature; datasheet prints -14.5 -14.5 | 6 |
| Quiescent Current | ISY |  | 0.9 | 1 | mA | VS = ± 18 V, VOUT = 0 V | 6 |
| Quiescent Current over temperature | ISY |  |  | 1.2 | mA | VS = ± 18 V, VOUT = 0 V, over temperature | 6 |
| Supply Voltage Range |  | -2.25 |  | 18 | V | printed ± 2.25 to ±18 | 6 |
| Specified Temperature Range |  | -40 |  | 125 | °C |  | 6 |
| Initial Gain | G |  | 1 |  | V/V | VOUT = ± 10 V | 6 |
| Differential Input Impedance | RIN |  | 800 |  | kΩ | Differential | 6 |
| Common-mode Input Impedance | RIN |  | 200 |  | kΩ | Common-mode | 6 |
| Short-Circuit Current Source | ISC |  | 50 |  | mA | Source | 6 |
| Short-Circuit Current Sink | ISC |  | 90 |  | mA | Sink | 6 |
| Capacitive Load Drive |  |  | 10 |  | nF | No sustained oscillations | 6 |
| Output Noise Voltage |  |  | 20 |  | µVP-P | 0.01 Hz to 10 Hz | 6 |
| Output Noise Density |  |  | 550 |  | nV/√Hz | 1 kHz | 6 |
| Small-signal Bandwidth | BW |  | 450 |  | kHz |  | 6 |
| Slew Rate | SR |  | 1.8 |  | V/µs | VOUT = ± 10 V step | 6 |
| Full-power Bandwidth |  |  | 28 |  | kHz | VOUT = 20 VP-P | 6 |
| Settling Time | tS |  | 18 |  | µs | 0.01%, VOUT = 10 V step | 6 |
| Supply Voltage |  |  |  | 40 | V |  | 5 |
| Input Voltage |  | -300 |  | 300 | V |  | 5 |
| Common-mode and Differential Input Voltage, 10s |  | -500 |  | 500 | V | 10s | 5 |
| Input Current on Any Input Pin |  |  |  | 10 | mA |  | 5 |
| Storage Temperature Range |  | -65 |  | 150 | °C |  | 5 |
| Maximum Reflow Temperature |  |  |  | 260 | °C | IPC/JEDEC J-STD-020 | 5 |
| Lead Temperature, Soldering |  |  |  | 300 | °C | 10 sec | 5 |
| ESD Human Body Model |  |  |  | 2.5 | kV | HBM | 5 |
| ESD Charged Device Model |  |  |  | 2 | kV | CDM | 5 |
| Thermal Resistance Junction-to-Ambient | θJA |  | 158 |  | °C/W | SOIC-8 | 5 |
| Thermal Resistance Junction-to-Case | θJC |  | 43 |  | °C/W | SOIC-8 | 5 |

## CAD (KiCad official)

- Symbol: `ZJA3669ASABR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `zja3669asabr-etched.step` / `zja3669asabr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `zja3669asabr.step` / `zja3669asabr.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [ZJW datasheet](docs/zja3669asabr-datasheet.pdf) (25 pp, sha256 `cb23bea88601df45`, retrieved 2026-10-27, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text), consensus `claude-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).

[Datasheet PDF](docs/zja3669asabr-datasheet.pdf)