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FEATURES
DESCRIPTION/ORDERING INFORMATION
APPLICATIONS
RELATED PRODUCTS
THS4511
VIN
R =75
S
W
VSignal
VS-
VCM =2.5V
RO
-
+
V
=5V
S+
175 W
75 W
130 W
348 W
V
OD
VideoSource
SLOS538A – SEPTEMBER 2007 – REVISED OCTOBER 2007
www.ti.com
RAD-TOLERANT CLASS V, WIDEBAND, FULLY DIFFERENTIAL AMPLIFIER
Fully Differential Architecture
Common-Mode Input Range Includes Negative
The THS4511 is a fully differential operational
amplifier
designed
for
single-supply
5
V
Rail
data-acquisition systems. It has very low noise at
Minimum Gain of 2 V/V (6 dB)
2 nV/
√Hz, and extremely low harmonic distortion of
Bandwidth: 1.1 GHz (Gain = 6 dB)
–76 dBc HD2 and –88 dBc HD3 at 70 MHz with
Slew Rate: 5100 V/μs
2 Vpp, G = 14 dB, and 100
load. Slew rate is very
high at 5100 V/
μs and with settling time of 5.5 ns to
1% Settling Time: 5.5 ns
1% (2 V step) it is ideal for pulsed applications. It is
HD
2: –76 dBc at 70 MHz
designed for minimum gain of 6 dB.
HD
3: –88 dBc at 70 MHz
To allow for dc coupling to ADCs, its unique output
OIP
2: 84 dBm at 70 MHz
common-mode control circuit maintains the output
OIP
3: 42 dBm at 70 MHz
common-mode voltage within 5 mV offset (typical)
from the set voltage, when set within ±0.5 V of
Input Voltage Noise: 2 nV/√Hz (f > 10 MHz)
mid-supply. The common-mode set point is set to
Noise Figure: 21.8 dB (50 System, G = 6 dB)
mid-supply by internal circuitry,
which
may
be
Output Common-Mode Control
over-driven from an external source.
5 V Power Supply Current: 39.2 mA
The THS4511 is a high-performance amplifier that
Power-Down Capability: 0.65 mA
has been optimized for use in 5 V single-supply data
acquisition systems. The output has been optimized
Rad-Tolerant: 150 kRad (Si) TID
for best performance with its common-mode voltages
QML-V Qualified, SMD 5962-07222
set to mid-supply, and the input has been optimized
for performance over a wide range of common-mode
input
voltages.
High
performance
at
a
low
power-supply voltage enables single-supply 5 V
5 V Data-Acquisition Systems
data-acquisition systems while minimizing component
High Linearity ADC Amplifier
count.
Wireless Communication
The THS4511 is offered in a 16-pin ceramic flatpack
Medical Imaging
package (W), and is characterized for operation over
Test and Measurement
the full military temperature range from –55
°C to
125
°C.
Video Buffer, Single Ended to Differential
MINIMUM
COMMON-MODE
DEVICE
GAIN
THS4511-SP
6 dB
–0.3 V to 2.3 V
THS4513-SP
6 dB
0.75 V to 4.25 V
(1) Assumes a 5 V single-ended power supply
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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.
PRODUCTION DATA information is current as of publication date.
Copyright 2007, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.