Datasheet

THS4509
www.ti.com SLOS454H –JANUARY 2005–REVISED NOVEMBER 2009
ELECTRICAL CHARACTERISTICS: V
S+
– V
S–
= 3 V (continued)
Test conditions at V
S+
= +1.5 V, V
S–
= –1.5 V, G = 10 dB, CM = open, V
O
= 1 V
PP
, R
F
= 349 Ω, R
L
= 200-Ω differential,
T
A
= +25°C, single-ended input, differential output, and input and output referenced to midsupply, unless otherwise noted.
THS4509
TEST
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT LEVEL
(1)
INPUT
Common-mode input range high 0.4
V
Common-mode input range low –0.4 B
Common-mode rejection ratio 80 dB
Differential input impedance 1.3 || 1.8 MΩ || pF C
Common-mode input impedance 1.0 || 2.3 MΩ || pF C
OUTPUT
Maximum output voltage high T
A
= +25°C 0.45 V
Each output with 100 Ω
to midsupply
Minimum output voltage low T
A
= +25°C –0.45 V
Differential output voltage swing 1.8 V
C
Differential output current drive R
L
= 10 Ω 50 mA
Output balance error V
O
= 100 mV, f = 1 MHz –49 dB
Closed-loop output impedance f = 1 MHz 0.3 Ω
OUTPUT COMMON-MODE VOLTAGE CONTROL
Small-signal bandwidth 570 MHz
Slew rate 60 V/μs
Gain 1 V/V
Output common-mode offset
1.25 V < CM < 3.5 V 4 mV
from CM input
C
CM input bias current 1.25 V < CM < 3.5 V ±40 μA
CM input voltage range –1.5 to 1.5 V
CM input impedance 20 || 1 kΩ || pF
CM default voltage 0 V
POWER SUPPLY
Specified operating voltage 3 V C
Quiescent current T
A
= +25°C 34.8 mA A
Power-supply rejection (±PSRR) 70 dB C
POWER-DOWN Referenced to V
S–
Enable voltage threshold Assured on above 2.1 V + V
S–
> 2.1 + V
S–
V
Disable voltage threshold Assured off below 0.7 V + V
S–
< 0.7 + V
S-
V
Power-down quiescent current 0.46 mA
Input bias current PD = V
S–
65 μA C
Input impedance 50 || 2 kΩ || pF
Turn-on time delay Measured to output on 100 ns
Turn-off time delay Measured to output off 10 μs
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