LM358 — Dual Low-Power General-Purpose Operational Amplifier

Overview

The LM358 (and DIP-8 LM358N) is an industry-standard dual operational amplifier IC manufactured by Texas Instruments, ON Semiconductor, and STMicroelectronics. Ubiquitous across sensor breakout boards (such as ZMPT101B AC voltage modules, LM393/LM358 sound/vibration modules, active analog filters, and microphone pre-amps), it contains two independent, high-gain, internally frequency-compensated op-amps.

Designed to operate from either a single supply ( $3.0\text{V}$ to $32.0\text{V}$ DC) or split supplies ( $\pm 1.5\text{V}$ to $\pm 16.0\text{V}$ ), the LM358's common-mode input range includes ground ( $0\text{V}$ ), making it ideal for single-supply $5\text{V}$ or $3.3\text{V}$ microcontroller applications.

Quick reference


Op-Amp Channels	2 Independent Operational Amplifiers
Package	8-pin DIP / SOIC-8 / MSOP-8
Single Supply Voltage Range	$3.0\text{ V}$ to $32.0\text{ V}$ DC
Split Supply Voltage Range	$\pm 1.5\text{ V}$ to $\pm 16.0\text{ V}$ DC
Gain-Bandwidth Product (GBW)	$1.0\text{ MHz}$
Slew Rate	$0.3\text{ V}/\mu\text{s}$
Input Offset Voltage	$2.0\text{ mV}$ typical / $5.0\text{ mV}$ max
Input Common-Mode Range	Includes Ground ( $0\text{V}$ ) on single supply
Quiescent Supply Current	$500\ \mu\text{A}$ typical (independent of supply voltage)

Pinout (DIP-8 Package)

text

             ┌───┴───┐
      OUTPUT A ─┤ 1   8 ├─ VCC (+VCC)
    -INPUT A ─┤ 2   7 ├─ OUTPUT B
    +INPUT A ─┤ 3   6 ├─ -INPUT B
  GND (-VCC) ─┤ 4   5 ├─ +INPUT B
             └───────┘

Pin	Name	Description
1	`OUTPUT A`	Op-Amp A Output
2	`-INPUT A`	Op-Amp A Inverting Input
3	`+INPUT A`	Op-Amp A Non-Inverting Input
4	`GND` / `-VCC`	Ground reference (0 V) or Negative Power Supply ( $-\text{V}_{CC}$ )
5	`+INPUT B`	Op-Amp B Non-Inverting Input
6	`-INPUT B`	Op-Amp B Inverting Input
7	`OUTPUT B`	Op-Amp B Output
8	`VCC` / `+VCC`	Positive Power Supply Input ( $+3.0\text{V} \dots +32\text{V}$ )

Specifications

Parameter	Symbol	Min	Typ	Max	Unit	Conditions
Single Supply Voltage	$V_{CC}$	3.0	5.0	32.0	V	DC
Quiescent Current	$I_{CC}$	—	500	700	µA	Over full supply range
Input Offset Voltage	$V_{IO}$	—	2.0	5.0	mV	$T_A = 25^\circ\text{C}$
Input Bias Current	$I_{IB}$	—	45	100	nA	$V_{CM} = 0\text{V}$
Large Signal Voltage Gain	$A_{VD}$	25	100	—	V/mV	$V_{CC} = 15\text{V}, R_L \ge 2\text{k}\Omega$
Common-Mode Rejection	$CMRR$	65	80	—	dB	$V_{CM} = 0\text{V} \dots V_{CC}-1.5\text{V}$
Output Voltage Swing High	$V_{OH}$	$V_{CC}-1.5$	$V_{CC}-1.2$	—	V	$R_L = 2\text{k}\Omega, V_{CC} = 5.0\text{V}$
Output Voltage Swing Low	$V_{OL}$	—	5	20	mV	$R_L = 10\text{k}\Omega, V_{CC} = 5.0\text{V}$

Common Op-Amp Circuit Configurations

Non-Inverting Amplifier

$V_{OUT} = V_{IN} \times \left( 1 + \frac{R_f}{R_{in}} \right)$

Inverting Amplifier

$V_{OUT} = -V_{IN} \times \left( \frac{R_f}{R_{in}} \right)$

Unity-Gain Voltage Follower (Buffer)

Connect OUTPUT directly to -INPUT. $V_{OUT} = V_{IN}$ with high input impedance and low output impedance.

Common mistakes

Expecting Rail-to-Rail Output Swing on $V_{CC}$ : The LM358 is NOT a rail-to-rail output op-amp. On a single $5.0\text{V}$ power supply, its maximum output voltage swings up to $\sim 3.5\text{V} \dots 3.7\text{V}$ ( $V_{CC} - 1.5\text{V}$ ). For full $0\text{V} \dots 5.0\text{V}$ rail-to-rail output swing, use a rail-to-rail op-amp like the MCP6002 or LMC6482.
Leaving unused op-amp channels floating: Leaving an unused op-amp channel floating causes high-frequency oscillations and excessive power supply noise. Connect -INPUT directly to OUTPUT (unity gain buffer) and connect +INPUT to a fixed DC bias voltage (or ground).

Notes

LM358 vs LM324 vs NE5532: LM358 is a dual general-purpose op-amp; LM324 is a quad (4-channel) version of the LM358; NE5532 is a low-noise high-speed audio op-amp.