OPA343, 2343, 4343

4

SBOS090A

TYPICAL PERFORMANCE CURVES

At TA = +25°C, VS = +5V, and RL = 10kΩ connected to VS/2, unless otherwise noted.

CLOSED-LOOP OUTPUT IMPEDANCE

vs FREQUENCY

5k

4k

3k

2k

1k

0

Frequency (Hz)

10

100

1k

10k

100k

1M

10M

G = 100

G = 10

G = 1

INPUT VOLTAGE AND CURRENT NOISE

SPECTRAL DENSITY vs FREQUENCY

10k

1k

100

10

1

1k

100

10

1

0.1

Frequency (Hz)

1

10

100

1k

10k

100k

1M

Current Noise

Voltage Noise

TOTAL HARMONIC DISTORTION + NOISE

vs FREQUENCY

0.1

0.01

0.001

0.0001

Frequency (Hz)

20

100

1k

10k

20k

R

L = 600

G = 10

G = 1

R

L = 2k

R

L = 2k

R

L = 10k

R

L = 600

R

L = 10k

OPEN-LOOP GAIN/PHASE vs FREQUENCY

0.1

1

160

140

120

100

80

60

40

20

0

–20

0

–45

–90

–135

–180

Frequency (Hz)

10

100

1k

10k

100k

1M

10M

POWER-SUPPLY and COMMON-MODE

REJECTION vs FREQUENCY

100

80

60

40

20

0

Frequency (Hz)

1

10

100

1k

10k

100k

1M

PSRR

CMRR

V

CM = –0.3V to (V+) –1.8V

CHANNEL SEPARATION vs FREQUENCY

Frequency (Hz)

140

130

120

110

100

100

10

1k

10k

100k

Dual and quad devices.

G = 1, all channels.

Quad measured channel A to D

or B to C—other combinations

yield improved rejection.