Datasheet

ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4 Data Sheet
Rev. E | Page 4 of 24
Parameter Test Conditions/Comments Min Typ Max Unit
Short-Circuit Current
Sourcing 205 mA
Sinking 307 mA
POWER-DOWN PINS (
PD1
,
PD2
,
PD3
) ADA4891-3 only
Threshold Voltage, V
TH
2.4 V
Bias Current Part enabled 65 nA
Part powered down −22 µA
Turn-On Time
Part enabled, output rises to 90% of final value
166
ns
Turn-Off Time Part 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 only 0.8 mA
Power Supply Rejection Ratio (PSRR)
Positive PSRR +V
S
= 5 V to 5.25 V, −V
S
= 0 V 65 dB
Negative PSRR +V
S
= 5 V, −V
S
= −0.25 V to 0 V 63 dB
OPERATING TEMPERATURE RANGE −40 +125 °C
3 V OPERATION
T
A
= 25°C, V
S
= 3 V, R
L
= 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, R
F
= 604 Ω; for the ADA4891-3 and ADA4891-4, R
F
= 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, V
O
= 0.2 V p-p 190 MHz
ADA4891-3/ADA4891-4, G = +1, V
O
= 0.2 V p-p 175 MHz
ADA4891-1/ADA4891-2, G = +2, V
O
= 0.2 V p-p,
R
L
= 150 Ω to 1.5 V
75 MHz
ADA4891-3/ADA4891-4, G = +2, V
O
= 0.2 V p-p,
R
L
= 150 Ω to 1.5 V
80 MHz
Bandwidth for 0.1 dB Gain Flatness ADA4891-1/ADA4891-2, G = +2, V
O
= 2 V p-p,
R
L
= 150 Ω to 1.5 V, R
F
= 604 Ω
18 MHz
ADA4891-3/ADA4891-4, G = +2, V
O
= 2 V p-p,
R
L
= 150 Ω to 1.5 V, R
F
= 374 Ω
18 MHz
Slew Rate, t
R
/t
F
G = +2, V
O
= 2 V step, 10% to 90%
140/230
V/µs
−3 dB Large-Signal Frequency Response G = +2, V
O
= 2 V p-p, R
L
= 150 Ω 40 MHz
Settling Time to 0.1% G = +2, V
O
= 2 V step 30 ns
NOISE/DISTORTION PERFORMANCE
Harmonic Distortion, HD2/HD3 f
C
= 1 MHz, V
O
= 2 V p-p, G = −1 −70/−89 dBc
Input Voltage Noise f = 1 MHz 9 nV/√Hz
Differential Gain Error (NTSC) G = +2, R
L
= 150 Ω to 0.5 V, +V
S
= 2 V, −V
S
= −1 V 0.23 %
Differential Phase Error (NTSC) G = +2, R
L
= 150 Ω to 0.5 V, +V
S
= 2 V, −V
S
= −1 V 0.77 Degrees
All-Hostile Crosstalk f = 5 MHz, G = +2 −80 dB
DC PERFORMANCE
Input Offset Voltage ±2.5 ±10 mV
ADA4891-1W/ADA4891-2W/ADA4891-4W only,
T
MIN
to T
MAX
±3.1
±16
mV
T
MIN
to T
MAX
±3.1 mV
Offset Drift 6 µV/°C