Datasheet
LMH6654, LMH6655
www.ti.com
SNOS956D –JUNE 2001–REVISED MARCH 2013
5V Electrical Characteristics
Unless otherwise specified, all limits ensured for T
J
= 25°C, V
+
= +5V, V
−
= −0V, V
CM
= 2.5V, A
V
= +1, R
F
= 25Ω for gain = +1,
R
F
= 402Ω for gain = ≥ +2, and R
L
= 100Ω to V
+
/2. Boldface limits apply at the temperature extremes.
Symbol Parameter Conditions Min Typ Max Units
(1) (2) (1)
Dynamic Performance
A
V
= +1 230
A
V
= +2 120
f
CL
Close Loop Bandwidth MHz
A
V
= +5 50
A
V
= +10 25
GBWP Gain Bandwidth Product A
V
≥ +5 250 MHz
Bandwidth for 0.1 dB Flatness A
V
= +1 17 MHz
φm Phase Margin 48 deg
SR Slew Rate
(3)
A
V
= +1, V
IN
= 2 V
PP
190 V/µs
Settling Time 30 ns
0.01%
t
S
A
V
= +1, 2V Step
0.1% 20 ns
t
r
Rise Time A
V
= +1, 0.2V Step 1.5 ns
t
f
Fall Time A
V
= +1, 0.2V Step 1.35 ns
Distortion and Noise Response
e
n
Input Referred Voltage Noise f ≥ 0.1 MHz 4.5 nV/√Hz
i
n
Input Referred Current Noise f ≥ 0.1 MHz 1.7 pA/√Hz
Second Harmonic Distortion A
V
= +1, f = 5 MHz −65
dBc
Third Harmonic Distortion V
O
= 2 V
PP
, R
L
= 100Ω −70
X
t
Crosstalk (for LMH6655 only) Input Referred, 5 MHz −78 dB
Input Characteristics
−5 ±2 5
V
OS
Input Offset Voltage V
CM
= 2.5V mV
−6.5 6.5
TC V
OS
Input Offset Average Drift V
CM
= 2.5V
(4)
6 µV/°C
6 12
I
B
Input Bias Current V
CM
= 2.5V µA
18
−2 0.5 2
I
OS
Input Offset Current V
CM
= 2.5V µA
−3 3
Common Mode 4 MΩ
R
IN
Input Resistance
Differential Mode 20 kΩ
Common Mode 1.8
C
IN
Input Capacitance pF
Differential Mode 1
Input Referred, 70 90
CMRR Common Mode Rejection Ration dB
V
CM
= 0V to −2.5V 68
CMRR ≥ 50 dB −0.15 0
CMVR Input Common Mode Voltage Range V
3.5 3.7
Transfer Characteristics
V
O
= 1.6 V
PP
, R
L
= 100Ω 58 64
A
VOL
Large Signal Voltage Gain dB
55
(1) All limits are specified by testing or statistical analysis.
(2) Typical Values represent the most likely parametric norm.
(3) Slew rate is the slower of the rising and falling slew rates. Slew rate is rate of change from 10% to 90% of output voltage step.
(4) Offset voltage average drift is determined by dividing the change in V
OS
at temperature extremes into the total temperature change.
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