Datasheet

LMH6645, LMH6646, LMH6647
SNOS970C –JUNE 2001–REVISED APRIL 2013 www.ti.com
2.7V Electrical Characteristics (continued)
Unless otherwise specified, all limits guaranteed for at T
J
= 25°C, V
+
= 2.7V, V
−
= 0V, V
CM
= V
O
= V
+
/2, and R
f
= 2kΩ, and R
L
= 1kΩ to V
+
/2. Boldface limits apply at the temperature extremes.
Symbol Parameter Conditions Min Typ Max Units
(1) (2) (1)
I
SC
Output Short Circuit Current Sourcing to V
−
43
V
ID
= 200mV
(7)(8)
mA
Sinking to V
+
42
V
ID
= −200mV
(7)(8)
I
OUT
Output Current V
OUT
= 0.5V from rails ±20 mA
PSRR Power Supply Rejection Ratio V
+
= 2.7V to 3.7V or 75 83 dB
V
−
= 0V to −1V
I
S
Supply Current (per channel) Normal Operation 650 1250
μA
Shutdown Mode (LMH6647 only) 15 50
(7) Short circuit test is a momentary test.
(8) Output short circuit duration is infinite for V
S
< 6V at room temperature and below. For V
S
> 6V, allowable short circuit duration is 1.5ms.
5V Electrical Characteristics
Unless otherwise specified, all limits guaranteed for at T
J
= 25°C, V
+
= 5V, V
−
= 0V, V
CM
= V
O
= V
+
/2, and R
f
= 2kΩ, and R
L
=
1kΩ to V
+
/2. Boldface limits apply at the temperature extremes.
Symbol Parameter Conditions Min Typ Max Units
(1) (2) (1)
BW −3dB BW A
V
= +1, V
OUT
= 200mV
PP
40 55 MHz
e
n
Input-Referred Voltage Noise f = 100kHz 17
nV/√Hz
f = 1kHz 25
i
n
Input-Referred Current Noise f = 100kHz 0.75
pA/√Hz
f = 1kHz 1.20
CT Rej. Cross-Talk Rejection f = 5MHz, Receiver:
47 dB
(LMH6646 only) R
f
= R
g
= 510Ω, A
V
= +2
SR Slew Rate A
V
= −1, V
O
= 2V
PP
V/μs
15 22
See
(3)
,
(4)
T
ON
Turn-On Time (LMH6647 only) 210 ns
T
OFF
Turn-Off Time (LMH6647 only) 500 ns
TH
SD
Shutdown Threshold I
S
≤ 50μA 4.25 4.60 V
(LMH6647 only)
I
SD
Shutdown Pin Input Current See
(5)
−20 μA
(LMH6647 only)
V
OS
Input Offset Voltage 0V ≤ V
CM
≤ 5V −3 3
±1 mV
−4 4
TC V
OS
Input Offset Average Drift See
(6)
±5 μV/C
I
B
Input Bias Current V
CM
= 4.8V
(5)
+2
+0.36
−2.2
μA
V
CM
= 0.5V
(5)
−2
−0.68
−2.2
I
OS
Input Offset Current 0V ≤ V
CM
≤ 5V 1 500 nA
R
IN
Common Mode Input Resistance 3 MΩ
C
IN
Common Mode Input 2 pF
Capacitance
(1) All limits are guaranteed by testing or statistical analysis.
(2) Typical values represent the most likely parametric norm.
(3) Slew rate is the average of the rising and falling slew rates.
(4) Guaranteed based on characterization only.
(5) Positive current corresponds to current flowing into the device.
(6) Offset voltage average drift determined by dividing the change in V
OS
at temperature extremes into the total temperature change.
4 Submit Documentation Feedback Copyright © 2001–2013, Texas Instruments Incorporated
Product Folder Links: LMH6645 LMH6646 LMH6647