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MAX4238ASA+T
Public Made by Adomby adom
Maxim Integrated Operational Amplifier, SOIC-8. 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
markdownMAX4238ASA+T
Maxim Integrated · Operational Amplifier · SOIC-8
MAX4238ASA+T from Maxim Integrated, 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 | SHDN | input | Active-low shutdown input; connect to VCC for normal operation, and pulling it low stops the clock and puts the output in a high-impedance state. |
| 2 | IN- | input | Inverting input of the amplifier. |
| 3 | IN+ | input | Noninverting input of the amplifier, with ground-sensing input capability. |
| 4 | GND | power_in | Ground reference for the device; the supply is specified from 2.7V to 5.5V above GND. |
| 5 | N.C. | unconnected | No connection; not internally connected. |
| 6 | OUT | output | Amplifier output with rail-to-rail swing, specified with RL = 1kΩ. |
| 7 | VCC | power_in | Positive power supply, operating from a single 2.7V to 5.5V supply. |
| 8 | N.C. | unconnected | No connection; not internally connected. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Maxim Integrated |
| Package | SOIC-8 |
| Category | Amplifiers |
| 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 |
|---|---|---|---|---|---|---|---|
| Input Offset Voltage | VOS | 0.1 | 2 | µV | (Note 1) | 3 | |
| Common-Mode Rejection Ratio | CMRR | 120 | 140 | dB | -0.1V ≤ VCM ≤ VCC - 1.3V (Note 1) | 3 | |
| Power-Supply Rejection Ratio | PSRR | 120 | 140 | dB | 2.7V ≤ VCC ≤ 5.5V (Note 1) | 3 | |
| Large-Signal Voltage Gain | AVOL | 125 | 150 | dB | 0.05V ≤ VOUT ≤ VCC - 0.05V (Note 1) RL = 10kW | 3 | |
| Large-Signal Voltage Gain | AVOL | 125 | 145 | dB | 0.1V ≤ VOUT ≤ VCC - 0.1V (Note 1) RL = 1kW | 3 | |
| Output Voltage Swing VCC - VOH | VCC - VOH | 4 | 10 | mV | RL = 10kW | 3 | |
| Output Voltage Swing VOL | VOL | 4 | 10 | mV | RL = 10kW | 3 | |
| Output Voltage Swing VCC - VOH | VCC - VOH | 35 | 50 | mV | RL = 1kW | 3 | |
| Output Voltage Swing VOL | VOL | 35 | 50 | mV | RL = 1kW | 3 | |
| Output Short-Circuit Current | 40 | mA | To either supply | 3 | |||
| Output Leakage Current | 0.01 | 1 | µA | 0 ≤ VOUT ≤ VCC, SHDN = GND (Note 2) | 3 | ||
| Maximum Closed-Loop Gain | 1000 | V/V | RL = 10kW, CL = 100pF, phase margin = 60° (MAX4238) | 4 | |||
| Minimum Stable Closed-Loop Gain | 1 | V/V | RL = 10kW, CL = 100pF, phase margin = 60° (MAX4238) | 4 | |||
| Supply Voltage Range | VCC | 2.7 | 5.5 | V | Inferred by PSRR test | 4 | |
| Supply Current | ICC | 600 | 850 | µA | SHDN = VCC, no load, VCC = 5.5V | 4 | |
| Supply Current | ICC | 0.1 | 1 | µA | SHDN = GND, VCC = 5.5V | 4 | |
| Shutdown Logic-High | VIH | 2.2 | V | 4 | |||
| Shutdown Logic-Low | VIL | 0.8 | V | 4 | |||
| Shutdown Input Current | 0.1 | 1 | µA | 0V ≤ VSHDN ≤ VCC | 4 | ||
| Input Offset Voltage | VOS | 2.5 | µV | (Note 1) TA = -40°C to +85°C | 5 | ||
| Input Offset Voltage | VOS | 3.5 | µV | (Note 1) TA = -40°C to +125°C | 5 | ||
| Common-Mode Rejection Ratio | CMRR | 115 | dB | VGND - 0.05V ≤ VCM ≤ VCC, 1.4V (Note 1) TA = -40°C to +85°C | 5 | ||
| Common-Mode Rejection Ratio | CMRR | 90 | dB | VGND - 0.05V ≤ VCM ≤ VCC, 1.4V (Note 1) TA = -40°C to +125°C | 5 | ||
| Power-Supply Rejection Ratio | PSRR | 120 | dB | 2.7V ≤ VCC ≤ 5.5V (Note 1) | 5 | ||
| Large-Signal Voltage Gain | AVOL | 125 | dB | RL = 10kW, 0.1V ≤ VOUT ≤ VCC - 0.1V (Note 1) TA = -40°C to +85°C | 5 | ||
| Large-Signal Voltage Gain | AVOL | 95 | dB | RL = 10kW, 0.1V ≤ VOUT ≤ VCC - 0.1V (Note 1) TA = -40°C to +125°C | 5 | ||
| Large-Signal Voltage Gain | AVOL | 120 | dB | RL = 1kW (Note 1) 0.1V ≤ VOUT ≤ VCC - 0.1V, TA = -40°C to +85°C | 5 | ||
| Large-Signal Voltage Gain | AVOL | 80 | dB | RL = 1kW (Note 1) 0.2V ≤ VOUT ≤ VCC - 0.2V, TA = -40°C to +125°C | 5 | ||
| Output Voltage Swing VCC - VOH | VCC - VOH | 20 | mV | RL = 10kW | 5 | ||
| Output Voltage Swing VOL | VOL | 20 | mV | RL = 10kW | 5 | ||
| Output Voltage Swing VCC - VOH | VCC - VOH | 100 | mV | RL = 1kW | 5 | ||
| Output Voltage Swing VOL | VOL | 100 | mV | RL = 1kW | 5 | ||
| Output Leakage Current | 2 | µA | 0V ≤ VOUT ≤ VCC, SHDN = GND (Note 3) | 5 | |||
| Supply Current | ICC | 900 | µA | SHDN = VCC, no load, VCC = 5.5V | 5 | ||
| Supply Current | ICC | 2 | µA | SHDN = GND, VCC = 5.5V | 5 | ||
| Shutdown Logic-Low | VIL | 0.7 | V | 5 | |||
| Shutdown Input Current | 2 | µA | 0V ≤ VSHDN ≤ VCC | 5 | |||
| Power Supply Voltage (VCC to GND) | VCC | 6 | V | 2 | |||
| Operating Temperature Range | -40 | 125 | °C | 2 | |||
| Junction Temperature | 150 | °C | 2 | ||||
| Storage Temperature Range | -65 | 150 | °C | 2 | |||
| Lead Temperature (soldering, 10s) | 300 | °C | soldering, 10s | 2 | |||
| Soldering Temperature (reflow), Lead(Pb)-Free Packages | 260 | °C | Lead(Pb)-Free Packages | 2 | |||
| Soldering Temperature (reflow), Packages Containing Lead | 240 | °C | Packages Containing Lead | 2 | |||
| Junction to Ambient, SO-8 Single-Layer Board | θJA | 170 | °C/W | SO-8, Thermal Resistance, Single-Layer Board | 2 | ||
| Junction to Case, SO-8 Single-Layer Board | θJC | 40 | °C/W | SO-8, Thermal Resistance, Single-Layer Board | 2 | ||
| Junction to Ambient, SO-8 Multi-Layer Board | θJA | 132 | °C/W | SO-8, Thermal Resistance, Multi-Layer Board | 2 | ||
| Junction to Case, SO-8 Multi-Layer Board | θJC | 38 | °C/W | SO-8, Thermal Resistance, Multi-Layer Board | 2 |
CAD (KiCad official)
- Symbol:
MAX4238ASA+T - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
max4238asa-t-etched.step/max4238asa-t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);max4238asa-t.step/max4238asa-t.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Maxim Integrated datasheet (11 pp, sha256
bb6a74be6d727b01, retrieved 2026-10-29, tier: manufacturer) - 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).