VO

+

RL

CL

VI

VCC+

VCC-

-

VO

+

100 Ω

VCC+

VCC-

RS

900 Ω

VI = 0 V

-

LM124-SP

LM124A-SP

SLOS668A – NOVEMBER 2010 – REVISED JANUARY 2011

www.ti.com

ELECTRICAL CHARACTERISTICS FOR LM124A (continued)

at specified free-air temperature, VCC = 5 V (unless otherwise noted)

PARAMETER

TEST CONDITIONS(1)

TA

(2)

MIN

TYP(3)

MAX

UNIT

+VCC = 15 V,

-VCC = -15 V,

NI(PC)

Noise popcorn(5)

25°C

50

mV/peak

RS = 20 kΩ,

BW = 10 Hz to 5 kHz

+VCC = 30 V,

-VCC = GND,

25°C

80

RL = 2 kΩ

CS

Channel separation

dB

RL = 2 kΩ,

25°C

80

VIN = 1 V and 16 V

(5)

Parameter characterized over temperature, but not production tested.

OPERATING CONDITIONS

VCC = ±15 V, TA = 25°C

PARAMETER

TEST CONDITIONS

TYP

UNIT

SR

Slew rate at unity gain

RL = 1 MΩ, CL = 30 pF, VI = ±10 V (see Figure 1)

0.5

V/ms

B1

Unity-gain bandwidth

RL = 1 MΩ, CL = 20 pF (see Figure 1)

1.2

MHz

Vn

Equivalent input noise voltage

RS = 100 Ω, VI = 0 V, f = 1 kHz (see Figure 2)

35

nV/

√Hz

Figure 1. Unity-Gain Amplifier

Figure 2. Noise-Test Circuit

8

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