Data Sheet

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

Rev. F | Page 5 of 24

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

POWER-DOWN PINS (PD1, PD2, PD3)

ADA4891-3, ADA4891-3W only

Threshold Voltage, VTH

2.4

V

Bias Current

Device enabled

65

nA

Device powered down

−22

µA

Turn-On Time

Device enabled, output rises to 90% of final value

166

ns

Turn-Off Time

Device powered down, output falls to 10% of

final value

49

ns

POWER SUPPLY

Operating Range

2.7

5.5

V

Quiescent Current per Amplifier

4.4

mA

Supply Current When Powered Down

ADA4891-3, ADA4891-3W only

0.8

mA

Power Supply Rejection Ratio (PSRR)

Positive PSRR

+VS = 5 V to 5.25 V, −VS = 0 V

65

dB

Negative PSRR

+VS = 5 V, −VS = −0.25 V to 0 V

63

dB

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

75

MHz

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

RL = 150 Ω to 1.5 V

80

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

18

MHz

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

RL = 150 Ω to 1.5 V, RF = 374 Ω

18

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

40

MHz

Settling Time to 0.1%

G = +2, VO = 2 V step

30

ns

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

9

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

dB

DC PERFORMANCE

Input Offset Voltage

±2.5

±10

mV

TMIN to TMAX

±3.1

mV

W grade only, TMIN to TMAX

±3.1

±16

mV

Offset Drift

6

µV/°C

Input Bias Current

−50

+2

+50

pA

W grade only, TMIN to TMAX

−50

+50

nA

Open-Loop Gain

RL = 1 kΩ to 1.5 V

72

76

dB

W grade only, TMIN to TMAX, RL = 1 kΩ to 1.5 V

60

dB

RL = 150 Ω to 1.5 V

65

dB