OPA350

OPA2350

OPA4350

SBOS099C − SEPTEMBER 2000 − REVISED JANUARY 2005

www.ti.com

3

All specifications at TA = +25°C, RL = 1kΩ connected to VS/2 and VOUT = VS/2, unless otherwise noted.

OPA350, OPA2350, OPA4350

PARAMETER

TEST CONDITIONS

MIN

TYP(1)

MAX

UNIT

OFFSET VOLTAGE

Input Offset Voltage

VOS

VS = 5V

±150

±500

µV

TA = −40°C to +85°C

±1

mV

vs Temperature

TA = −40°C to +85°C

±4

µV/°C

vs Power-Supply Rejection Ratio

PSRR

VS = 2.7V to 5.5V, VCM = 0V

40

150

µV/V

TA = −40°C to +85°C

VS = 2.7V to 5.5V, VCM = 0V

175

µV/V

Channel Separation (dual, quad)

dc

0.15

µV/V

INPUT BIAS CURRENT

Input Bias Current

IB

±0.5

±10

pA

vs Temperature

See Typical Characteristics

Input Offset Current

IOS

±0.5

±10

pA

NOISE

Input Voltage Noise, f = 100Hz to 400kHz

4

µVrms

Input Voltage Noise Density, f = 10kHz

en

7

nV/

√Hz

Input Current Noise Density, f = 100kHz

5

nV/

√Hz

Current Noise Density, f = 10kHz

in

4

fA/

√Hz

INPUT VOLTAGE RANGE

Common-Mode Voltage Range

VCM

TA = −40°C to +85°C

−0.1

(V+) + 0.1

V

Common-Mode Rejection Ratio

CMRR

VS = 2.7V, −0.1V < VCM < 2.8V

66

84

dB

VS = 5.5V, −0.1V < VCM < 5.6V

74

90

dB

TA = −40°C to +85°C

VS = 5.5V, −0.1V < VCM < 5.6V

74

dB

INPUT IMPEDANCE

Differential

1013 || 2.5

Ω || pF

Common-Mode

1013 || 6.5

Ω || pF

OPEN-LOOP GAIN

Open-Loop Voltage Gain

AOL

RL = 10kΩ, 50mV < VO < (V+) −50mV

100

122

dB

TA = −40°C to +85°C

RL = 10kW, 50mV < VO < (V+) −50mV

100

dB

RL = 1kΩ, 200mV < VO < (V+) −200mV

100

120

dB

TA = −40°C to +85°C

RL = 1kW, 200mV < VO < (V+) −200mV

100

dB

FREQUENCY RESPONSE

CL = 100pF

Gain-Bandwidth Product

GBW

G = 1

38

MHz

Slew Rate

SR

G = 1

22

V/

µs

Settling Time: 0.1%

G =

±1, 2V Step

0.22

µs

0.01%

G =

±1, 2V Step

0.5

µs

Overload Recovery Time

VIN • G = VS

0.1

µs

Total Harmonic Distortion + Noise

THD+N

RL = 600Ω, VO = 2.5VPP(2), G = 1, f = 1kHz

0.0006

%

Differential Gain Error

G = 2, RL = 600Ω, VO = 1.4V(3)

0.17

%

Differential Phase Error

G = 2, RL = 600Ω, VO = 1.4V(3)

0.17

deg

(1) VS = +5V.

(2) VOUT = 0.25V to 2.75V.

(3) NTSC signal generator used. See Figure 6 for test circuit.

(4) Output voltage swings are measured between the output and power supply rails.

(5) See typical characteristic curve, Output Voltage Swing vs Output Current.