THS4511-SP Datasheet, PDF (1/24 Pages) Texas Instruments – RAD-TOLERANT CLASS V, WIDEBAND, FULLY DIFFERENTIAL AMPLIFIER

THS4511–SP
www.ti.com
SLOS538A – SEPTEMBER 2007 – REVISED OCTOBER 2007
RAD-TOLERANT CLASS V, WIDEBAND, FULLY DIFFERENTIAL AMPLIFIER
FEATURES
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• Fully Differential Architecture
• Common-Mode Input Range Includes Negative
Rail
• 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
• 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
APPLICATIONS
• 5 V Data-Acquisition Systems
• High Linearity ADC Amplifier
• Wireless Communication
• Medical Imaging
• Test and Measurement
RELATED PRODUCTS
DEVICE
THS4511-SP
THS4513-SP
MINIMUM
GAIN
6 dB
6 dB
COMMON-MODE
RANGE OF INPUT⁽¹⁾
–0.3 V to 2.3 V
0.75 V to 4.25 V
(1) Assumes a 5 V single-ended power supply
DESCRIPTION/ORDERING INFORMATION
The THS4511 is a fully differential operational
amplifier designed 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.
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.
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
input voltages. High performance at a low
power-supply voltage enables single-supply 5 V
data-acquisition systems while minimizing component
count.
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.
Video Buffer, Single Ended to Differential
Video Source
R_S = 75 W V_IN
175 W
V_Signal
130 W
75 W
175 W
130 W
348 W
V_S+ = 5 V
THS4511
V_S-
V_CM = 2.5 V
R_O
-
R_O ^VOD
+
348 W
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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