OPA4872-EP datasheet(4/25 Pages) TI1

Part #	OPA4872-EP

Description	4:1 HIGH-SPEED MULTIPLEXER

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Manufacturer	TI1 [Texas Instruments]

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ELECTRICAL CHARACTERISTICS: VS = ±5 V

OPA4872-EP

SBOS444 – DECEMBER 2008........................................................................................................................................................................................... www.ti.com

At TA = +25°C, G = +2 V/V, RF = 523 Ω, and RL = 150 Ω, unless otherwise noted.

MIN/MAX OVER

TYP

TEMPERATURE

–55°C to

MIN/

TEST

PARAMETER

CONDITIONS

+25°C

(2)

+125°C

(3)

UNITS

MAX

LEVEL

(1)

AC PERFORMANCE

Small-signal bandwidth

VO = 500 mVPP, RL = 150 Ω

500

MHz

min

B

Bandwidth for 0.1 dB flatness

VO = 500 mVPP, RL = 150 Ω

120

MHz

typ

C

Large-signal bandwidth

VO = 2 VPP, RL = 150 Ω

500

MHz

min

B

Slew rate

4 V step

2300

V/

µs

min

B

Rise time and fall time

4 V step

1.25

ns

max

B

Settling time

to 0.05%

2 V step

15

ns

typ

C

to 0.1%

2 V step

14

ns

max

B

Channel switching time

10

ns

max

B

Harmonic distortion

G = +2 V/V, f = 10 MHz, VO = 2 VPP

2nd-harmonic

RL = 150 Ω

-60

dBc

max

B

3rd-harmonic

RL = 150 Ω

-78

dBc

max

B

Input voltage noise

f > 100 kHz

4.5

nV/

√Hz

max

B

Noninverting input current noise

f > 100 kHz

4.0

pA/

√Hz

max

B

Inverting input current noise

f > 100 kHz

19

pA/

√Hz

max

B

Differential gain

G = +2 V/V, PAL, VO = 1.4 VP

0.035

%

typ

C

Differential phase

G = +2 V/V, PAL, VO = 1.4 VP

0.005

°

typ

C

All hostile crosstalk, input-referred

Three channels driven at 5 MHz, 1 VPP

-80

dB

typ

C

Three channels driven at 30 MHz, 1 VPP

-66

dB

typ

C

DC PERFORMANCE

Open-loop transimpedance (ZOL)

VO = 0 V, RL = 100 Ω

103

92

60

k

Ω

min

A

Input offset voltage

VCM = 0 V

±1

±5

±10.5

mV

max

A

Average Input offset voltage drift

VCM = 0 V

±30

µV/°C

max

B

Input offset voltage matching

VCM = 0 V

±1

±5

±10.5

mV

max

A

Noninverting input bias current

VCM = 0 V

±4

±14

±20

µA

max

A

Average noninverting input bias current

VCM = 0 V

±48

nA/°C

max

B

Inverting bias current

VCM = 0 V

±4

±18

±35

µA

max

A

Average inverting input bias current

VCM = 0 V

±125

nA/°C

max

B

INPUT

Common-mode input range (CMIR)

Each noninverting input

±2.7

±2.55

±2.4

V

min

A

Common-mode rejection ratio (CMRR)

VCM = 0 V, input-referred, noninverting input

56

50

43

dB

min

A

Input resistance

Noninverting

Channel enabled

2.5

M

Ω

typ

C

Inverting

open loop

70

Ω

typ

C

Input capacitance

Noninverting

Channel selected

0.9

pF

typ

C

Channel deselected

0.9

pF

typ

C

Chip disabled

0.9

pF

typ

C

OUTPUT

Output voltage swing

RL ≥ 1 kΩ

±4

±3.9

±3.55

V

min

A

RL = 150 Ω

±3.7

±3.55

±3.35

V

min

A

Output current

VO = 0 V

±75

±48

±38

mA

min

A

Short-circuit output current

Output shorted to ground

±100

mA

typ

C

Closed-Loop output impedance

G = +2 V/V, f

≤ 100 kHz

0.03

Ω

typ

C

(1)

Test levels: (A) 100% tested at +25°C. Over temperature limits set by characterization and simulation. (B) Limits set by characterization

and simulation. (C) Typical value only for information.

(2)

Junction temperature = ambient for +25°C tested specifications.

(3)

Junction temperature = ambient at low temperature limit; junction temperature = ambient +9°C at high temperature limit for over

temperature specifications.

4

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