ADA4891-2ARZ-R7 datasheet(4/24 Pages) AD

4 / 24 page

ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4

Rev. B | Page 4 of

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

Turn-On Time

Part enabled, output rises to 90% of final value

166

Turn-Off Time

Part powered down, output falls to 10% of final

value

POWER SUPPLY

Operating Range

2.7

5.5

Quiescent Current per Amplifier

4.4

Supply Current When Powered Down

ADA4891-3 only

0.8

Power Supply Rejection Ratio (PSRR)

Positive PSRR

+VS = 5 V to 5.25 V, −VS = 0 V

Negative PSRR

+VS = 5 V, −VS = −0.25 V to 0 V

OPERATING TEMPERATURE RANGE

−40

+125

°C

3 V OPERATION

TA = 25°C, VS = 3 V, RL = 1 kΩ to 1.5 V, unless otherwise noted. All specifications are for the ADA4891-1, ADA4891-2, ADA4891-3, and

ADA4891-4, unless otherwise noted. For the ADA4891-1 and ADA4891-2, RF = 604 Ω; for the ADA4891-3 and ADA4891-4, RF = 453 Ω,

unless otherwise noted.

Table 2.

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

DYNAMIC PERFORMANCE

−3 dB Small-Signal Bandwidth

ADA4891-1/ADA4891-2, G = +1, VO = 0.2 V p-p

190

MHz

ADA4891-3/ADA4891-4, G = +1, VO = 0.2 V p-p

175

MHz

ADA4891-1/ADA4891-2, G = +2, VO = 0.2 V p-p,

RL = 150 Ω to 1.5 V

MHz

ADA4891-3/ADA4891-4, G = +2, VO = 0.2 V p-p,

RL = 150 Ω to 1.5 V

MHz

Bandwidth for 0.1 dB Gain Flatness

ADA4891-1/ADA4891-2, G = +2, VO = 2 V p-p,

RL = 150 Ω to 1.5 V, RF = 604 Ω

MHz

ADA4891-3/ADA4891-4, G = +2, VO = 2 V p-p,

RL = 150 Ω to 1.5 V, RF = 374 Ω

MHz

Slew Rate, tR/tF

G = +2, VO = 2 V step, 10% to 90%

140/230

V/μs

−3 dB Large-Signal Frequency Response

G = +2, VO = 2 V p-p, RL = 150 Ω

MHz

Settling Time to 0.1%

G = +2, VO = 2 V step

NOISE/DISTORTION PERFORMANCE

Harmonic Distortion, HD2/HD3

fC = 1 MHz, VO = 2 V p-p, G = −1

−70/−89

dBc

Input Voltage Noise

f = 1 MHz

nV/√Hz

Differential Gain Error (NTSC)

G = +2, RL = 150 Ω to 0.5 V, +VS = 2 V, −VS = −1 V

0.23

Differential Phase Error (NTSC)

G = +2, RL = 150 Ω to 0.5 V, +VS = 2 V, −VS = −1 V

0.77

Degrees

All-Hostile Crosstalk

f = 5 MHz, G = +2

−80

DC PERFORMANCE

Input Offset Voltage

±2.5

±10

TMIN to TMAX

±3.1

Offset Drift

μV/°C

Input Bias Current

−50

+50

Open-Loop Gain

RL = 1 kΩ to 1.5 V

RL = 150 Ω to 1.5 V

INPUT CHARACTERISTICS

Input Resistance

GΩ

Input Capacitance

3.2

Input Common-Mode Voltage Range

−VS − 0.3 to

+VS − 0.8

Common-Mode Rejection Ratio (CMRR)

VCM = 0 V to 1.5 V

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