THS4511–SP
www.ti.com
SLOS538A–SEPTEMBER 2007–REVISED OCTOBER 2007
RAD-TOLERANT CLASS V, WIDEBAND, FULLY DIFFERENTIAL AMPLIFIER
1
FEATURES
DESCRIPTION/ORDERING INFORMATION
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Fully Differential Architecture
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Common-Mode Input Range Includes Negative
Rail
The THS4511 is
amplifier designed
a
fully differential operational
for single-supply
5
V
data-acquisition systems. It has very low noise at
2 nV/√Hz, and extremely low harmonic distortion of
–76 dBc HD2 and –88 dBc HD3 at 70 MHz with
2 Vpp, G = 14 dB, and 100 Ω load. Slew rate is very
high at 5100 V/μs and with settling time of 5.5 ns to
1% (2 V step) it is ideal for pulsed applications. It is
designed for minimum gain of 6 dB.
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Minimum Gain of 2 V/V (6 dB)
Bandwidth: 1.1 GHz (Gain = 6 dB)
Slew Rate: 5100 V/μs
1% Settling Time: 5.5 ns
HD2: –76 dBc at 70 MHz
HD3: –88 dBc at 70 MHz
To allow for dc coupling to ADCs, its unique output
common-mode control circuit maintains the output
common-mode voltage within 5 mV offset (typical)
from the set voltage, when set within ±0.5 V of
mid-supply. The common-mode set point is set to
mid-supply by internal circuitry, which may be
over-driven from an external source.
OIP2: 84 dBm at 70 MHz
OIP3: 42 dBm at 70 MHz
Input Voltage Noise: 2 nV/√Hz (f > 10 MHz)
Noise Figure: 21.8 dB (50 Ω System, G = 6 dB)
Output Common-Mode Control
5 V Power Supply Current: 39.2 mA
Power-Down Capability: 0.65 mA
Rad-Tolerant: 150 kRad (Si) TID
QML-V Qualified, SMD 5962-07222
The THS4511 is a high-performance amplifier that
has been optimized for use in 5 V single-supply data
acquisition systems. The output has been optimized
for best performance with its common-mode voltages
set to mid-supply, and the input has been optimized
for performance over a wide range of common-mode
APPLICATIONS
input voltages. High performance at
a
low
power-supply voltage enables single-supply 5 V
data-acquisition systems while minimizing component
count.
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5 V Data-Acquisition Systems
High Linearity ADC Amplifier
Wireless Communication
Medical Imaging
The THS4511 is offered in a 16-pin ceramic flatpack
package (W), and is characterized for operation over
the full military temperature range from –55°C to
125°C.
Test and Measurement
RELATED PRODUCTS
Video Buffer, Single Ended to Differential
MINIMUM
GAIN
COMMON-MODE
RANGE OF INPUT(1)
DEVICE
Video Source
THS4511-SP 6 dB
THS4513-SP 6 dB
–0.3 V to 2.3 V
0.75 V to 4.25 V
R
= 75 W
V
175 W
348 W
S
IN
V
= 5 V
S+
130 W
V
Signal
(1) Assumes a 5 V single-ended power supply
R
R
O
O
-
VOD
THS4511
175 W
+
V
= 2.5 V
CM
V
75 W
130 W
S-
348 W
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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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007, Texas Instruments Incorporated