Datasheet
LMH6551
SNOSAK7C –FEBRUARY 2005–REVISED MARCH 2013
www.ti.com
±5V Electrical Characteristics
(1)
(continued)
Single ended in differential out, T
A
= 25°C, G = +1, V
S
= ±5V, V
CM
= 0V, R
F
= R
G
= 365Ω, R
L
= 500Ω; Unless specified
Boldface limits apply at the temperature extremes.
Symbol Parameter Conditions Min
(2)
Typ
(3)
Max
(2)
Units
V
CM
CMRR V
ID
= 0V, 1V step on V
CM
pin, measure 70 75 dB
V
OD
Input Resistance 25 kΩ
Common Mode Gain ΔV
O,CM
/ΔV
CM
0.995 0.999 1.005 V/V
Output Performance
Output Voltage Swing Single Ended, Peak to Peak ±7.38 ±7.8 V
±7.18
Output Common Mode Voltage Range V
ID
= 0 V, ±3.69 ±3.8 V
I
OUT
Linear Output Current V
OUT
= 0V ±50 ±65 mA
I
SC
Short Circuit Current Output Shorted to Ground 140 mA
V
IN
= 3V Single Ended
(7)
l
Output Balance Error ΔV
OUT
Common Mode −70 dB
/ΔV
OUT
DIfferential , V
OUT
= 0.5 Vpp
Differential, f = 10 MHz
Miscellaneous Performance
A
VOL
Open Loop Gain Differential 70 dB
PSRR Power Supply Rejection Ratio DC, ΔV
S
= ±1V 74 90 dB
Supply Current R
L
= ∞ 11 12.5 14.5 mA
16.5
(7) The maximum output current (I
OUT
) is determined by device power dissipation limitations.
5V Electrical Characteristics
(1)
Single ended in differential out, T
A
= 25°C, G = +1, V
S
= 5V, V
CM
= 2.5V, R
F
= R
G
= 365Ω, R
L
= 500Ω; Unless
specifiedBoldface limits apply at the temperature extremes.
Symbol Parameter Conditions Min
(2)
Typ
(3)
Max
(2)
Units
SSBW Small Signal −3 dB Bandwidth R
L
= 500Ω, V
OUT
= 0.5 V
PP
350 MHz
LSBW Large Signal −3 dB Bandwidth R
L
= 500Ω, V
OUT
= 2 V
PP
300 MHz
0.1 dB Bandwidth V
OUT
= 2 V
PP
50 MHz
Slew Rate 4V Step
(4)
1800 V/μs
Rise/Fall Time, 10% to 90% 4V Step 2 ns
Settling Time 4V Step, 0.05% 17 ns
V
CM
Pin AC Performance (Common Mode Feedback Amplifier)
Common Mode Small Signal 170 MHz
Bandwidth
Distortion and Noise Response
HD2 2
nd
Harmonic Distortion V
O
= 2 V
PP
, f = 5 MHz, R
L
=800Ω −84 dBc
HD2 V
O
= 2 V
PP
, f = 20 MHz, R
L
=800Ω −69 dBc
HD3 3
rd
Harmonic Distortion V
O
= 2 V
PP
, f = 5 MHz, R
L
=800Ω −93 dBc
HD3 V
O
= 2 V
PP
, f = 20 MHz, R
L
=800Ω −67 dBc
e
n
Input Referred Noise Voltage Freq ≥ 1 MHz 6.0 nV/√Hz
i
n
Input Referred Noise Current Freq ≥ 1 MHz 1.5 pA/√Hz
(1) Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very
limited self-heating of the device such that T
J
= T
A
. No specification of parametric performance is indicated in the electrical tables under
conditions of internal self-heating where T
J
> T
A
.
(2) Limits are 100% production tested at 25°C. Limits over the operating temperature range are specified through correlation using
Statistical Quality Control (SQC) methods.
(3) Typical numbers are the most likely parametric norm.
(4) Slew Rate is the average of the rising and falling edges.
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