Data Sheet

AD8027/AD8028

SPECIFICATIONS

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Rev. E | 5 of 27

Table 2. (Continued)

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

Input Offset Current

AD8028W only: TMIN to TMAX

±0.1

±0.9

µA

Open-Loop Gain

VOUT = 1 V to 4 V, AD8028W only: TMIN to TMAX

96

105

dB

INPUT CHARACTERISTICS

Input Impedance

6

MΩ

Input Capacitance

2

pF

Input Common-Mode Voltage Range

−0.2 to +5.2

V

Common-Mode Rejection Ratio

VCM = 0 V to 2.5 V

90

105

dB

AD8028W only: TMIN to TMAX

84

dB

DISABLE/SELECT PIN

Selection Input Voltage

Crossover Low

TMIN to TMAX

2.0

V

Crossover High2

Tristate < ±20 µA, TMIN to TMAX

1.1 to 1.3

V

Disable Input Voltage

TMIN to TMAX

0.4

V

Disable Switching Speed

50% of input to <10% of final VOUT

1100

ns

Enable Switching Speed

50

ns

OUTPUT CHARACTERISTICS

Overdrive Recovery Time (Rising/Falling Edge)

VIN = −6 V to +1 V, G = −1

50/50

ns

Output Voltage Swing

AD8028W only: TMIN to TMAX

0.08 to 4.92

0.04 to 4.96

V

Off Isolation

VIN = 0.2 V p-p, f = 1 MHz, DISABLE/SELECT = low

−49

dB

Short-Circuit Current

Sinking and sourcing

105

mA

Capacitive Load Drive

30% overshoot

20

pF

POWER SUPPLY

Operating Range

2.7

12

V

Quiescent Current per Amplifier

6

8.5

mA

AD8028W only: TMIN to TMAX

9

mA

Quiescent Current per Amplifier (Disabled)

DISABLE/SELECT = low

320

450

µA

AD8028W only: TMIN to TMAX

450

µA

Power Supply Rejection Ratio

VS ± 1 V, AD8028W only: TMIN to TMAX

90

105

dB

1 No sign or a plus sign indicates current into the pin; a minus sign indicates current out of the pin.

2 It is recommended to float the DISABLE/SELECT pin for crossover high mode.

VS = 3 V at TA = 25°C, RL = 1 kΩ to midsupply, G = +1, unless otherwise noted.

Table 3.

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

DYNAMIC PERFORMANCE

−3 dB Bandwidth

G = +1, VOUT = 0.2 V p-p

125

180

MHz

AD8028W only: TMIN to TMAX

125

MHz

G = +1, VOUT = 2 V p-p

19

29

MHz

AD8028W only: TMIN to TMAX

19

MHz

Bandwidth for 0.1 dB Flatness

G = +2, VOUT = 0.2 V p-p

10

MHz

Slew Rate

G = +1, VOUT = 2 V step

73

V/µs

G = −1, VOUT = 2 V step

100

V/µs

Settling Time to 0.1%

G = +2, VOUT = 2 V step

48

ns

NOISE/DISTORTION PERFORMANCE

Spurious-Free Dynamic Range (SFDR)

fC = 1 MHz, VOUT = 2 V p-p, RF = 24.9 Ω

85

dBc

fC = 5 MHz, VOUT = 2 V p-p, RF = 24.9 Ω

64

dBc

Input Voltage Noise

f = 100 kHz

4.3

nV/√Hz