LT6230 — Datasheet Summary, Specs & Alternatives

01 — Overview

This Analog Devices datasheet covers the LT6230, LT6230-10, LT6231, and LT6232 op amp family. It details single, dual, and quad low-noise, rail-to-rail output amplifiers designed for signal conditioning and active filters. Key parameters include 1.1nV/√Hz noise voltage, 3.5mA maximum supply current per amp, and gain bandwidth products ranging from 215MHz to 1450MHz. The devices operate on a wide 3V to 12.6V supply range with rail-to-rail output swings. Available in SOT-23, SO, DFN, and SSOP packages, they feature an enable pin for shutdown and are specified for industrial temperature ranges.

02 — Key specifications

Datasheet parameters

Parameter	Min	Typ	Max	Conditions
quiescent current	—	3.15 mA	3.5 mA	ENABLE = V+– 0.35V
output voltage	—	185 mV	460 mV	ISINK = 20mA VS = 3.3V
output current	30 mA	45 mA	—	VS = 5V
supply voltage range	1.5 V	—	4 V	Guaranteed by CMRR, VS = 5V, 0V
input offset voltage drift	—	500 nV/°C	3 µV/°C	VCM = Half Supply; ●
input offset voltage	—	100 µV	500 µV	LT6230S6, LT6230S6-10
cmrr	90 dB	115 dB	—	VS = 5V, VCM = 1.5V to 4V
input offset current	—	100 nA	600 nA
input bias current	—	5 µA	10 µA
input capacitance	—	2.9 pF	—	Common Mode
slew rate	42 MV/s	60 MV/s	—	VS = 5V, AV = –1, RL = 1k, VO = 1.5V to 3.5V
psrr	90 dB	115 dB	—	VS = 3V to 10V
settling time	—	55 ns	—	0.1%, VS = 5V, VSTEP = 2V, AV = –1, RL = 1k

03 — Alternatives

Closest matches to LT6230

MC33078 16.7× lower input bias current, 8.6× lower slew rate, 5.1× higher supply voltage range

ADA4807-1AKSZ-R2 12.5× lower input offset current, 9.4× lower input bias current, 5.0× lower input offset voltage

TSV911AIDT 13.3× lower slew rate, 10.0× higher input offset voltage drift, 1.5× lower cmrr

LM741 10.0× higher input offset voltage, 5.5× higher supply voltage range, 5.0× lower input offset current

OPA134 12.7× higher settling time, 10.0× higher input offset voltage, 5.5× higher supply voltage range

MCP6021 8.6× lower slew rate, 5.0× higher input offset voltage, 4.5× higher settling time

BA4580RF-E2 20.0× lower input offset current, 13.1× higher supply voltage range, 12.0× lower slew rate

AD8065ART 5.3× higher supply voltage range, 4.0× higher input offset voltage, 3.0× higher slew rate

04 — FAQ

Frequently asked questions

What is the CMRR of the LT6230?

The CMRR is 115 dB at VS = 5V and VCM = 1.5V to 4V.

What is the input bias current of the LT6230?

The input bias current is 5 µA.

What is the input capacitance under Common Mode conditions?

The input capacitance is 2.9 pF under Common Mode conditions.

What is the input offset current of the LT6230?

The input offset current is 100 nA.

What is the input offset voltage for the LT6230S6 and LT6230S6-10?

The input offset voltage is 100 µV for the LT6230S6 and LT6230S6-10.

What is the input offset voltage drift when VCM = Half Supply?

The input offset voltage drift is 500 nV/°C.

What is the output current when VS = 5V?

The output current is 45 mA when VS = 5V.

What is the output voltage when ISINK = 20mA and VS = 3.3V?

The output voltage is 185 mV.