Datasheet

LMH6551
SNOSAK7C –FEBRUARY 2005–REVISED MARCH 2013 www.ti.com
3.3V Electrical Characteristics
(1)
Single ended in differential out, T
A
= 25°C, G = +1, V
S
= 3.3V, V
CM
= 1.65V, 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
320 MHz
LSBW Large Signal −3 dB Bandwidth R
L
= 500Ω, V
OUT
= 1 V
PP
300 MHz
Slew Rate 1V Step
(4)
700 V/μs
Rise/Fall Time, 10% to 90% 1V Step 2 ns
V
CM
Pin AC Performance (Common Mode Feedback Amplifier)
Common Mode Small Signal 95 MHz
Bandwidth
Distortion and Noise Response
HD2 2
nd
Harmonic Distortion V
O
= 1 V
PP
, f = 5 MHz, R
L
=800Ω −93 dBc
HD2 V
O
= 1 V
PP
, f = 20 MHz, R
L
=800Ω −74 dBc
HD3 3
rd
Harmonic Distortion V
O
= 1V
PP
, f = 5 MHz, R
L
=800Ω −85 dBc
HD3 V
O
= 1V
PP
, f = 20 MHz, R
L
=800Ω −69 dBc
Input Characteristics (Differential)
V
OSD
Input Offset Voltage Differential Mode, V
ID
= 0, V
CM
= 0 1 mV
Input Offset Voltage Average
(5)
1.6 µV/°C
Temperature Drift
I
BIAS
Input Bias Current
(6)
−8 μA
Input Bias Current Average
(5)
9.5 nA/°C
Temperature Drift
Input Bias Current Difference Difference in Bias currents between the 0.3 µA
two inputs
CMRR Common-Mode Rejection Ratio DC, V
ID
= 0V 78 dBc
Input Resistance Differential 5 MΩ
Input Capacitance Differential 1 pF
V
ICM
Input Common Mode Range CMRR > 53 dB +1.5
+0.3
V
CM
Pin Input Characteristics (Common Mode Feedback Amplifier)
Input Offset Voltage Common Mode, V
ID
= 0 1 ±5 mV
Input Offset Voltage Average 18.6 µV/°C
Temperature Drift
Input Bias Current 3 μA
V
CM
CMRR V
ID
= 0, 60 dB
1V step on V
CM
pin, measure V
OD
Input Resistance V
CM
pin to ground 25 kΩ
Common Mode Gain ΔV
O,CM
/ΔV
CM
0.999 V/V
Output Performance
V
OUT
Output Voltage Swing Single Ended, Peak to Peak, V
S
= 3.3V, ±0.75 ±0.9 V
V
CM
= 1.65V
I
OUT
Linear Output Current V
OUT
= 0V Differential ±30 ±40 mA
I
SC
Output Short Circuit Current Output Shorted to Ground 200 mA
V
IN
= 2V Single Ended
(7)
(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.
(5) Drift determined by dividing the change in parameter at temperature extremes by the total temperature change.
(6) Negative input current implies current flowing out of the device.
(7) The maximum output current (I
OUT
) is determined by device power dissipation limitations.
6 Submit Documentation Feedback Copyright © 2005–2013, Texas Instruments Incorporated
Product Folder Links: LMH6551