component
ACHS-7122-000E
Public Made by Adomby adom
AVAGO(Broadcom) Current Sensors, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Contents
README
markdownACHS-7122-000E
AVAGO(Broadcom) · Current Sensors · SOIC-8
ACHS-7122-000E from AVAGO(Broadcom), 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 | IP+ | passive | Terminal for the current being sampled, fused internally; pins 1 and 2 are shorted together on the input side and carry the primary current into pins 3 and 4. |
| 2 | IP+ | passive | Terminal for the current being sampled, fused internally; pin 2 is shorted to pin 1 in the typical application circuit. |
| 3 | IP- | passive | Terminal for the current being sampled, fused internally; pins 3 and 4 are shorted together and form the return side of the primary conductor. |
| 4 | IP- | passive | Terminal for the current being sampled, fused internally; pin 4 is shorted to pin 3 in the typical application circuit, and primary conductor lead temperature is limited to 150 °C on pins 1 to 4. |
| 5 | GND | power_in | Output-side ground; a 1-µF bypass capacitor is recommended between pins 8 and 5. |
| 6 | FILTER | passive | Filter pin to set bandwidth; a ceramic filter capacitor CF connected from this pin to GND sets the bandwidth (80 kHz typical with 1 nF). |
| 7 | VOUT | output | Output voltage, ratiometric to VDD with zero-current output at VDD/2; the datasheet limits the output load to a minimum of 4.7 kΩ resistive and a maximum of 10 nF capacitive. |
| 8 | VDD | power_in | Supply voltage relative to GND, specified at 4.5 V to 5.5 V with an absolute maximum of 8.0 V; a 1-µF bypass capacitor is recommended between pins 8 and 5. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | AVAGO(Broadcom) |
| Package | SOIC-8 |
| Category | Sensors |
| 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 |
|---|---|---|---|---|---|---|---|
| Ambient Operating Temperature | TA | -40 | 110 | °C | 6 | ||
| Supply Voltage | VDD | 4.5 | 5.5 | V | 6 | ||
| Output Capacitive Load | CLOAD | 10 | nF | 6 | |||
| Output Resistive Load | RLOAD | 4.7 | kΩ | 6 | |||
| Input Current Range ACHS-7122 | IP | -20 | 20 | A | 6 | ||
| Optimized Input Current Range (ACHS-7122) | IP | -20 | 20 | A | 8 | ||
| Supply Current | IDD | 13 | 15 | mA | VDD = 5V, output open | 6 | |
| Sensitivity Error | ESENS | -3 | 3 | % | TA = 25°C, VDD = 5V | 8 | |
| Zero Current Output Error (ACHS-7122) | VOE | -25 | 25 | mV | TA = 25°C | 8 | |
| Common Mode Transient Immunity | CMTI | 25 | kV/us | VCM = 1000V | 6 | ||
| Input-Output Momentary Withstand Voltage | VISO | 3000 | VRMS | RH < 50%, t = 1 min., TA = 25°C | 9 | ||
| Storage Temperature | TS | -55 | 125 | °C | 5 | ||
| Ambient Operating Temperature | TA | -40 | 110 | °C | 5 | ||
| Junction Temperature | TJ | 150 | °C | 5 | |||
| Primary Conductor Lead Temperature | TL | 150 | °C | Pins 1, 2, 3, or 4 | 5 | ||
| Supply Voltages | VDD | -0.5 | 8 | V | 5 | ||
| Output Voltage | VOUT | -0.5 | V | 5 | |||
| Output Current Source | IOUT(source) | 10 | mA | TA = 25°C | 5 | ||
| Output Current Sink | IOUT(sink) | 10 | mA | TA = 25°C | 5 | ||
| Overcurrent Transient Tolerance | IP | 100 | A | 1 pulse, 100 ms; TA = 25°C | 5 | ||
| Input Power Dissipation | PIN | 900 | mW | TA = 25°C | 5 | ||
| Output Power Dissipation | POUT | 90 | mW | TA = 25°C | 5 | ||
| Junction-to-Ambient Thermal Resistance (due to Primary Conductor) | Rθ12 | 55 | °C/W | Based on the Broadcom evaluation board | 9 | ||
| Junction-to-Ambient Thermal Resistance (due to IC) | Rθ22 | 27 | °C/W | Based on the Broadcom evaluation board | 9 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | Abs | Insulation and Safety Related Specifications Absolute Maximum Rating | 5 | |
| contacts | copper | through the primary copper conduction path (from pins 1 and 2, | 1 |
CAD (KiCad official)
- Symbol:
ACHS-7122-000E - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
achs-7122-000e-etched.step/achs-7122-000e-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);achs-7122-000e.step/achs-7122-000e.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: AVAGO(Broadcom) datasheet (15 pp, sha256
46570c97df222e56, retrieved 2026-10-29, tier: lcsc) - 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).