OPA379

OPA2379

OPA4379

SBOS347A − NOVEMBER 2005 − REVISED DECEMBER 2005

www.ti.com

3

Boldface limits apply over the specified temperature range indicated.

OPA379, OPA2379, OPA4379

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

OFFSET VOLTAGE

Initial Offset Voltage

0.4

1.5

mV

Over −40

°C to +125°C

2

mV

Drift, −40

°C to +85°C

1.5

µV/°C

−40

°C to +125°C

2.7

µV/°C

vs Power Supply

PSRR

2

10

µV/V

Over −40

°C to +125°C

20

µV/V

INPUT VOLTAGE RANGE

Common-Mode Voltage Range

(V−) − 0.1 to (V+) + 0.1

V

Common-Mode Rejection Ratio(1)

CMRR

90

100

dB

Over −40

°C to +85°C

80

dB

Over −40

°C to +125°C

62

dB

INPUT BIAS CURRENT

Input Bias Current

±5

±50

pA

Input Offset Current

±5

±50

pA

INPUT IMPEDANCE

Differential

1013 || 3

Ω || pF

Common-Mode

1013 || 6

Ω || pF

NOISE

Input Voltage Noise, f = 0.1Hz to 10Hz

2.8

µVPP

Input Voltage Noise Density, f = 1kHz

80

nV/

√Hz

Input Current Noise Density, f = 1kHz

1

fA/

√Hz

OPEN-LOOP GAIN

Open-Loop Voltage Gain

100

120

dB

Over −40

°C to +125°C

92

dB

100

120

dB

Over −40

°C to +125°C

92

dB

OUTPUT

Voltage Output Swing from Rail

5

10

mV

Over −40

°C to +125°C

15

mV

25

50

mV

Over −40

°C to +125°C

75

mV

Short-Circuit Current

±5

mA

Capacitive Load Drive

See Typical Characteristics Curve

Closed-Loop Output Impedance

10

Ω

Open-Loop Output Impedance

28

k

Ω

FREQUENCY RESPONSE

Gain Bandwidth Product

GBW

90

kHz

Slew Rate

SR

G = +1

0.03

V/

µs

Overload Recovery Time

25

µs

Turn-On Time

1

ms

POWER SUPPLY

Specified/Operating Voltage Range

1.8

5.5

V

Quiescent Current per Amplifier

2.9

5.5

µA

Over −40

°C to +125°C

10

µA

TEMPERATURE

Specified/Operating Range

−40

+125

°C

Storage Range

−65

+150

°C

Thermal Resistance

SC70−5

250

°C/W

SOT23−5

200

°C/W

SOT23−8, TSSOP−14, SO−8

150

°C/W

(1) See Typical Characteristic, Common-Mode Rejection Ratio vs Frequency.