VCA2616YT ,Dual, Variable Gain Amlifier w/Low Noise Pre-AmpMaximum Ratings” mayESD damage can range from subtle performance degrada-cause permanent damage to ..
VCA2617 ,2-Channel Variable Gain AmplifierMAXIMUM RATINGSTexas Instruments recommends that allPower Supply (V ) . . . . . . . . . . . . . . . ..
VCA2617RHBR ,2-Channel Variable Gain Amplifier 32-VQFN -40 to 85ELECTRICAL CHARACTERISTICS All specifications at T = +25°C, V = 5V, load resistance = 500Ω on each ..
VCA2617RHBT ,2-Channel Variable Gain Amplifier 32-VQFN -40 to 85FEATURES DESCRIPTION INDEPENDENT CHANNEL CONTROLS:The VCA2617 is a dual-channel, continuously vari ..
VCA2617RHBTG4 ,Brown Corporation - Dual, Variable Gain Amplifier
VCA2618YT ,Dual/ VARIABLE GAIN AMPLIFIER with Input BufferPIN CONFIGURATIONTop View TQFP+IN 1 24 VCAA CNTLNC 2 23 MGS3V 3 22 MGSDDR 2V 4 21 MGSBIAS 1VCA2618V ..
W29EE011P-15 , 128K X 8 CMOS FLASH MEMORY
W29EE011P-15 , 128K X 8 CMOS FLASH MEMORY
W29EE011P-90 , 128K X 8 CMOS FLASH MEMORY
W29EE011P-90 , 128K X 8 CMOS FLASH MEMORY
W29EE011P-90 , 128K X 8 CMOS FLASH MEMORY
W29EE011P-90 , 128K X 8 CMOS FLASH MEMORY
VCA2616YR-VCA2616YT
Dual, Variable Gain Amlifier w/Low Noise Pre-Amp
FEA TURES LOW-NOISE PREAMP:
– Low Input Noise: 0.95nV/ Active Termination Noise Reduction Switchable Termination Value 80MHz Bandwidth 5dB to 25dB Gain Differential In and Out LOW-NOISE VARIABLE GAIN AMPLIFIER: Low-Noise VCA Up to 40dB Gain Range 40MHz Bandwidth Differential In and Out LOW CROSSTALK: 66dB at Max Gain, 5MHz HIGH-SPEED VARIABLE GAIN ADJUST SWITCHABLE EXTERNAL PROCESSING
APPLICA TIONS ULTRASOUND SYSTEMS WIRELESS RECEIVERS TEST EQUIPMENT
DESCRIPTIONThe VCA2616 and VCA2611 are dual, Low-Noise Preamplifiers
(LNP), plus low-noise Variable Gain Amplifiers (VGA). The
VCA2611 is an upgraded version of the VCA2616. The only
difference between the VCA2616 and the VCA2611 is the input
structure to the LNP. The VCA2616 is limited to –0.3V negative-
going input spikes; the VCA2611 is limited to –2.0V negative-
going input spikes. This change allows the user to use slower
and less expensive input clamping diodes prior to the LNP input.
In some designs, input clamping may not be required.
The combination of Active Termination (AT) and Maximum
Gain Select (MGS) allow for the best noise performance. The
VCA2616 and VCA2611 also feature low crosstalk and out-
standing distortion performance.
The LNP has differential input and output capability and is
strappable for gains of 5dB, 17dB, 22dB, or 25dB. Low input
impedance is achieved by AT, resulting in as much as a 4.6dB
improvement in noise figure over conventional shunt termina-
tion. The termination value can also be switched to accommo-
date different sources. The output of the LNP is available for
external signal processing.
The variable gain is controlled by an analog voltage whose
gain varies from 0dB to the gain set by the MGS. The ability
to program the variable gain also allows the user to optimize
dynamic range. The VCA input can be switched from the LNP
to external circuits for different applications. The output can be
used in either a single-ended or differential mode to drive high-
performance Analog-to-Digital (A/D) converters, and is cleanly
limited for optimum overdrive recovery.
The combination of low noise, gain, and gain range program-
mability makes the VCA2616 and VCA2611 versatile building
blocks in a number of applications where noise performance
is critical. The VCA2616 and VCA2611 are available in a
TQFP-48 package.
Dual, Variable-Gain Amplifier
with Low-Noise PreampRF2
FBSW
LNPGS1
LNPGS2
LNPGS3
LNP
Gain
Set
Input
LNPOUTP SELVCAINP
LNPOUTN VCAINN VCACNTLFBCNTL
VCAOUTP
VCAOUTN
Maximum Gain Select
VCA2616
VCA2611SBOS234E – MARCH 2002 – REVISED NOVEMBER 2004
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
