LMH6644-MIL Datasheet, PDF (1/28 Pages) Texas Instruments – Low-Power, 130-MHz, 75-mA Rail-to-Rail Output Amplifier

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LMH6644-MIL
SNOSD65 – JUNE 2017
LMH6644-MIL Low-Power, 130-MHz, 75-mA Rail-to-Rail Output Amplifier
1 Features
1(V_S = ±5 V, T_A = 25°C, R_L = 2 kΩ, A_V = +1.
Typical Values Unless Specified).
• –3 dB BW (A_V = +1) 130 MHz
• Supply Voltage Range 2.7 V to 12.8 V
• Slew Rate, (A_V = –1) 130 V/µs⁽¹⁾
• Supply Current (no load) 2.7 mA/amp
• Output Short Circuit Current +115 mA to 145 mA
• Linear Output Current ±75 mA
• Input Common Mode Voltage 0.5 V Beyond V^–, 1
V from V⁺
• Output Voltage Swing 40 mV from Rails
• Input Voltage Noise (100 kHz) 17 nV/√Hz
• Input Current Noise (100 kHz) 0.9 pA/√Hz
• THD (5 MHz, R_L = 2 kΩ, V_O = 2 V_PP, A_V = +2) –62
dBc
• Settling Time 68 ns
• Fully Characterized for 3 V, 5 V, and ±5 V
• Overdrive Recovery 100 ns
• Output Short Circuit Protected⁽²⁾
• No Output Phase Reversal with CMVR Exceeded
(1) _{Slew rate is the average of the rising and falling slew rates.}
(2) _{Output short circuit duration is infinite for VS < 6 V at room}
temperature and below. For V_S > 6 V, allowable short circuit
duration is 1.5 ms.
2 Applications
• Active Filters
• CD/DVD ROM
• ADC Buffer Amp
• Portable Video
• Current Sense Buffer
3 Description
The LMH6644-MIL true single supply voltage
feedback amplifier offers high speed (130 MHz), low
distortion (–62 dBc), and exceptionally high-output
current (approximately 75 mA) at low cost and with
reduced power consumption when compared against
existing devices with similar performance.
Input common mode voltage range extends to 0.5 V
below V^– and 1 V from V⁺. Output voltage range
extends to within 40 mV of either supply rail, allowing
wide dynamic range especially desirable in low-
voltage applications. The output stage is capable of
approximately 75 mA in order to drive heavy loads.
Fast output slew rate (130 V/µs) ensures large peak-
to-peak output swings can be maintained even at
higher speeds, resulting in exceptional full power
bandwidth of 40 MHz with a 3-V supply. These
characteristics, along with low cost, are ideal features
for a multitude of industrial and commercial
applications.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LMH6644-MIL
SOIC (14)
TSSOP (14)
8.64 mm × 3.91 mm
5.00 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Closed Loop Gain vs Frequency
for Various Supplies
8.0
±1.5V
6.0
4.0
±5
2.0
0.0
±2.5V
V_O = 0.2V_PP
A_V = +2
R_F = R_L = 2k
100k
1M
10M
FREQUENCY (Hz)
200M
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.