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LMH6551 Datasheet, PDF (4/32 Pages) National Semiconductor (TI) – Differential, High Speed Op Amp
LMH6551
SNOSAK7D – FEBRUARY 2005 – REVISED JANUARY 2015
7.3 Recommended Operating Conditions
Operating Temperature Range
Total Supply Voltage
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MIN
NOM
MAX UNIT
−40
+125
°C
3
12
V
7.4 Thermal Information
THERMAL METRIC(1)
LMH6551
D
DGK
UNIT
RθJA
Junction-to-ambient thermal resistance (2)
8 PINS
150
8 PINS
235
°C/W
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
(2) The maximum power dissipation is a function of TJ(MAX), θJA and TA. The maximum allowable power dissipation at any ambient
temperature is P D= (TJ(MAX) — TA)/ θJA. All numbers apply for package soldered directly into a 2 layer PC board with zero air flow.
7.5 Electrical Characteristics: ±5 V(1)
Single-ended in differential out, TA= 25°C, G = +1, VS = ±5 V, VCM = 0 V, RF = RG = 365 Ω, RL = 500 Ω; unless specified.
PARAMETER
TEST CONDITIONS
MIN (2) TYP (3) MAX (2) UNIT
AC PERFORMANCE (DIFFERENTIAL)
SSBW
LSBW
Small Signal −3 dB Bandwidth
Large Signal −3 dB Bandwidth
Large Signal −3 dB Bandwidth
0.1 dB Bandwidth
Slew Rate
VOUT = 0.5 VPP
VOUT = 2 VPP
VOUT = 4 VPP
VOUT = 2 VPP
4-V Step(4)
370
340
320
50
2400
MHz
MHz
MHz
MHz
V/μs
Rise/Fall Time
2-V Step
1.8
ns
Settling Time
2-V Step, 0.05%
18
ns
VCM PIN AC PERFORMANCE (COMMON-MODE FEEDBACK AMPLIFIER)
Common-Mode Small Signal
Bandwidth
VCMbypass capacitor removed
200
MHz
DISTORTION AND NOISE RESPONSE
HD2
HD2
HD3
HD3
en
Input Referred Voltage Noise
in
Input Referred Noise Current
INPUT CHARACTERISTICS (DIFFERENTIAL)
VO = 2 VPP, f = 5 MHz, RL=800 Ω
VO = 2 VPP, f = 20MHz, RL=800 Ω
VO = 2 VPP, f = 5 MHz, RL=800 Ω
VO = 2 VPP, f = 20 MHz, RL=800 Ω
Freq ≥ 1 MHz
Freq ≥ 1 MHz
−94
dBc
−85
dBc
−96
dBc
−72
dBc
6.0
nV/√Hz
1.5
pA/√Hz
VOSD
Input Offset Voltage
Differential Mode, VID
= 0, VCM = 0
At extreme
temperatures
0.5
±4 mV
±6
Input Offset Voltage Average
Temperature Drift(5)
IBI
Input Bias Current(6)
−0.8
µV/°C
-4
0 µA
-10
Input Bias Current Average
Temperature Drift(5)
−2.6
nA/°C
(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 TJ = TA. No specification of parametric performance is indicated in the electrical tables under
conditions of internal self-heating where TJ > TA.
(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.
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