# CSA2302NAMSOP8

**analogysemi** · Current Sense Amplifiers · MSOP-8

CSA2302NAMSOP8 from analogysemi, in a MSOP-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 | RS1+ | input | Channel 1 external sense resistor power-side connection, with input common-mode range of 0V to 76V. |
| 2 | RS1- | input | Channel 1 external sense resistor load-side connection, with input common-mode range of 0V to 76V. |
| 3 | RS2+ | input | Channel 2 external sense resistor power-side connection, with input common-mode range of 0V to 76V. |
| 4 | RS2- | input | Channel 2 external sense resistor load-side connection, with input common-mode range of 0V to 76V. |
| 5 | GND | power_in | Ground. |
| 6 | OUT2 | output | Channel 2 output. |
| 7 | OUT1 | output | Channel 1 output. |
| 8 | VDD | power_in | Supply voltage, 2.7V to 5.5V operating range (absolute maximum 6.0V to GND). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | analogysemi |
| Package | MSOP-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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VDD | 2.7 |  | 5.5 | V | Guaranteed by PSRR | 5 |
| Supply Current | IDD |  | 1021 | 1300 | µA | TA = 25°C | 5 |
| Supply Current | IDD |  |  | 1300 | µA | -40°C < TA < 125°C | 5 |
| Power-Supply Rejection Ratio | PSRR | 105 | 123 |  | dB | 2.7V ≤ VDD ≤ 5.5V | 5 |
| Input Common-Mode Voltage Range | VCM | 0 |  | 76 | V | Guaranteed by CMRR | 5 |
| Input Bias Current at VRS+ and VRS- | IRS+, IRS- |  | 5 | 20 | nA | VSENSE = 0V | 5 |
| Input Offset Current | IRS+, IRS- |  | 5 | 20 | nA | VSENSE = 0V | 5 |
| Input Leakage Current | IRS+, IRS- |  | 0.005 | 0.2 | µA | VDD = 0V, VRS+ = VRS- = 76V | 5 |
| Common-Mode Rejection Ratio | CMRR | 125 | 155 |  | dB | 0V < VRS+ < 76V | 5 |
| Input Offset Voltage | VOS | -60 | 10 | 60 | µV | TA = 25°C | 5 |
| Input Offset Voltage | VOS | -100 | 30 | 100 | µV | -40°C ≤ TA ≤ 125°C | 5 |
| Gain Error | GE |  | 0.02 | 0.1 | % | TA = 25°C | 5 |
| Gain Error | GE |  | 0.08 | 0.3 | % | -40°C ≤ TA ≤ 125°C | 5 |
| Output Low Voltage | VOL |  |  | 10 | mV | Sink 500µA | 5 |
| Output Low Voltage | VOL |  | 4 |  | mV | No load | 5 |
| VDD to GND | VDD | -0.3 |  | 6 | V |  | 4 |
| RS+, RS- to GND |  | -0.3 |  | 80 | V |  | 4 |
| RS+ to RS- |  | -80 |  | 80 | V | 1s maximum duration due to package thermal dissipation | 4 |
| Continuous input current (any pin) |  | -20 |  | 20 | mA |  | 4 |
| Operating temperature | TA | -40 |  | 125 | °C |  | 4 |
| Junction temperature | TJ |  |  | 150 | °C |  | 4 |
| Storage temperature | Tstg | -65 |  | 150 | °C |  | 4 |
| Lead temperature (soldering) |  |  |  | 300 | °C | 10s | 4 |
| Soldering (reflow) |  |  |  | 260 | °C |  | 4 |
| ESD HBM | V(ESD) | -6000 |  | 6000 | V | Human-body model, ANSI/ESDA/JEDEC JS-001 | 4 |
| ESD CDM | V(ESD) | -1000 |  | 1000 | V | Charged-device model, JESD22-C101 | 4 |
| Junction-to-Ambient Thermal Resistance | RθJA |  | 145 |  | °C/W | MSOP-8 | 4 |
| Junction-to-Case (Top) Thermal Resistance | RθJC(top) |  | 48.3 |  | °C/W | MSOP-8 | 4 |
| Junction-to-Board Thermal Resistance | RθJB |  | 83.3 |  | °C/W | MSOP-8 | 4 |
| Junction-to-Case (Bottom) Thermal Resistance | RθJC(bot) |  | 85 |  | °C/W | MSOP-8 | 4 |
| Input Offset Voltage Drift | TCVOS |  | 200 |  | nV/°C |  | 5 |
| Gain | G |  | 50 |  | V/V | CSA2302-50 | 5 |
| Signal Bandwidth | BW |  | 90 |  | kHz | -3dB, all gain configurations, VSENSE > 5mV | 5 |
| AC Power-Supply Rejection Ratio | AC PSRR |  | 43 |  | dB | f = 200kHz | 5 |
| AC CMRR | AC CMRR |  | 71 |  | dB | f = 200kHz | 5 |
| Capacitive Load Stability | CLOAD |  | 20 |  | nF | With 250Ω isolation resistor | 5 |
| Capacitive Load Stability | CLOAD |  | 500 |  | pF | Without any isolation resistor | 5 |
| Input Voltage-Noise Density | en |  | 58 |  | nV/√Hz | f = 1kHz | 5 |
| Power-Up Time |  |  | 80 |  | µs |  | 5 |
| Saturation Recovery Time |  |  | 5 |  | µs |  | 5 |

## CAD (KiCad official)

- Symbol: `CSA2302NAMSOP8`
- Footprint: `Package_SO:MSOP-8_3x3mm_P0.65mm`
- 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files: `csa2302namsop8-etched.step` / `csa2302namsop8-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `csa2302namsop8.step` / `csa2302namsop8.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [analogysemi datasheet](docs/csa2302namsop8-datasheet.pdf) (14 pp, sha256 `688f65a9186965b3`, retrieved 2026-10-23, 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/csa2302namsop8-datasheet.pdf)