LM7321 datasheet(6/35 Pages) TI

6 / 35 page

LM7321, LM7322

SNOSAW8D – MAY 2008 – REVISED MARCH 2013

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±15V Electrical Characteristics

(1) (continued)

Unless otherwise specified, all limited ensured for TA = 25°C, V

+ = 15V, V− = −15V, V

CM = 0V, VOUT = 0V, and RL > 1MΩ to

15V. Boldface limits apply at the temperature extremes.

Min

Typ

Max

Symbol

Parameter

Condition

Units

(2)

(3)

(2)

100

−15V ≤ VCM ≤ 12V

CMRR

Common Mode Rejection Ratio

−15V ≤ VCM ≤ 15V

100

PSRR

Power Supply Rejection Ratio

2.7V

≤ VS ≤ 30V, VCM = −14.5V

−15.3

−15.1

−15

CMVR

Common Mode Voltage Range

CMRR > 50 dB

15.1

15.3

−13V ≤ VO ≤ 13V

RL = 10 kΩ to 0V

AVOL

Open Loop Voltage Gain

−13V ≤ VO ≤ 13V

RL = 2 kΩ to 0V

RL = 10 kΩ to 0V

150

300

VID = 100 mV

350

Output Voltage Swing

High

RL = 2 kΩ to 0V

250

550

VID = 100 mV

650

mV from

VOUT

either rail

RL = 10 kΩ to 0V

200

VID = −100 mV

250

Output Voltage Swing

Low

RL = 2 kΩ to 0V

130

300

VID = −100 mV

400

Sourcing

VID = 200 mV, VOUT = −15V

(6)

IOUT

Output Current

Sinking

100

VID = −200 mV, VOUT = 15V

(6)

1.1

1.7

LM7321

2.4

Supply Current

VCM = −14.5V

2.5

LM7322

5.6

Slew Rate (7)

AV = +1, VI = 20V Step

V/µs

Unity Gain Frequency

RL = 2 kΩ, CL = 20 pF

11.3

MHz

GBW

Gain Bandwidth

f = 50 kHz

MHz

Input Referred Voltage Noise Density

f = 2 kHz

nV/

Input Referred Current Noise Density

f = 2 kHz

1.3

pA/

f = 1 kHz, RL 100 kΩ,

THD+N

Total Harmonic Distortion +Noise

−86

AV = +2, VOUT = 23 VPP

CT Rej.

Crosstalk Rejection

f = 100 kHz, Driver RL = 10 kΩ

(6)

Applies to both single-supply and split-supply operation. Continuous short circuit operation at elevated ambient temperature can result in

exceeding the maximum allowed junction temperature of 150°C. Short circuit test is a momentary test. Output short circuit duration is

infinite for VS ≤ 6V at room temperature and below. For VS > 6V, allowable short circuit duration is 1.5 ms.

(7)

Slew rate is the slower of the rising and falling slew rates. Connected as a Voltage Follower.

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