LMH6657_16 Datasheet, PDF (1/35 Pages) Texas Instruments – 270-MHz Single Supply, Single and Dual Amplifiers

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LMH6657, LMH6658
SNOSA35G – AUGUST 2002 – REVISED JULY 2015
LMH6657 and LMH6658 270-MHz Single Supply, Single and Dual Amplifiers
1 Features
V_S 1 = 5 V, T_A = 25°C, R_L = 100 Ω (Typical Values
Unless Specified)
• −3dB BW (A_V = +1) 270 MHz
• Supply Voltage Range 3 V to 12 V
• Slew Rate, (V_S = ±5 V) 700 V/µs
• Supply Current 6.2 mA/amp
• Output Current +80/−90 mA
• Input Common-Mode Volt. 0.5 V Beyond V^−, 1.7 V
from V⁺
• Output Voltage Swing (R_L = 2 kΩ) 0.8 V from
Rails
• Input Voltage Noise 11 nV/√Hz
• Input Current Noise 2.1 pA√Hz/
• DG Error 0.03%
• DP Error 0.10°
• THD (5MHz) −55 dBc
• Settling Time (0.1%) 37ns
• Fully Characterized for 5 V, and ±5 V
• Output Overdrive Recovery 18 ns
• Output Short Circuit Protected⁽¹⁾
• No Output Phase Reversal With CMVR Exceeded
2 Applications
• CD/DVD ROM
• ADC Buffer Amps
• Portable Video
• Current Sense Buffers
• Portable Communications
(1) Short Circuit Test is a momentary test.
See Note 3 under Absolute Maximum Ratings.
3 Description
The LMH6657 and LMH6658 devices are low-cost
operational amplifiers that operate from a single
supply with input voltage range extending below the
V^−. Based on easy to use voltage feedback topology
and boasting fast slew rate (700 V/µs) and high
speed (140 MHz GBWP), the LMH6657 (Single) and
LMH6658 (dual) can be used in high speed large
signal applications. These applications include
instrumentation, communication devices, set-top
boxes, and so forth.
With a -3dB BW of 100 MHz (A_V = +2) and DG & DP
of 0.03% & 0.10° respectively, the LMH6657 and
LMH6658 are well suited for video applications. The
output stage can typically supply 80 mA into the load
with a swing of about 1 V from either rail.
For Industrial applications, the LMH6657 and
LMH6658 are excellent cost-saving choices. Input
referred voltage noise is low and the input voltage
can extend below V^− to ease amplification of low level
signals that could be at or near the system ground.
With low distortion and fast settling, LMH6657 and
LMH6658 can provide buffering for A/D and D/A
applications.
The LMH6657 and LMH6658 versatility and ease of
use is extended even further by offering these high
slew rate, high-speed operational amplifiers in
miniature packages such as SOT-23-5, SC70, SOIC-
8, and VSSOP-8.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LMH6657
SC70 (5)
SOT-23 (5)
2.00 mm × 1.25 mm
2.90 mm × 1.60 mm
LMH6658
SOIC (8)
VSSOP (8)
4.90 mm × 3.91 mm
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Noninverting Frequency Response, Gain
0
-1 AV = +10
A_V = +5
-3
A_V = +2
A_V = +1
-5
V_S = ±2.5V
R_L = 100:
-7 _{VOUT = 200mVPP}
1M
10M
100M 500M
FREQUENCY (Hz)
1
Noninverting Frequency Response, Phase
0
-50 _{AV = +10}
A_V = +1
-100
A_V = +5
A_V = +2
-150
-200 ^{VS = ±2.5V}
R_L = 100:
V_OUT = 200mV_PP
1M
10M
100M
FREQUENCY (Hz)
500M
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.