THS7530 Datasheet, PDF (1/24 Pages) Texas Instruments – HIGH-SPEED, FULLY DIFFERENTIAL, CONTINUOUSLY VARIABLE GAIN AMPLIFIER

THS7530
www.ti.com
SLOS405C – DECEMBER 2002 – REVISED FEBRUARY 2010
HIGH-SPEED, FULLY DIFFERENTIAL, CONTINUOUSLY
VARIABLE GAIN AMPLIFIER
Check for Samples: THS7530
FEATURES
1
•23 Low Noise: V_n = 1.1 nV/√Hz,
Noise Figure = 9 dB
• Low Distortion:
– - HD₂ = -65 dBc, HD₃ = -61 dBc at 32 MHz
– - IMD₃ = -62 dBc, OIP₃ = 21 dBm at 70 MHz
• 300 MHz Bandwidth
• Continuously Variable Gain Range: 11.6 dB
to 46.5 dB
• Gain Slope: 38.8 dB/V
• Fully Differential Input and Output
• Output Common-Mode Voltage Control
• Output Voltage Limiting
APPLICATIONS
• Time Gain Amplifiers in Ultra Sound, Sonar,
and Radar
• Automatic Gain Control in Communication
and Video
• System Gain Calibration in Communications
• Variable Gain in Instrumentation
1 kW
1 kW
DESCRIPTION
The THS7530 is fabricated using Texas Instruments'
state-of-the-art BiCom III SiGe complementary bipolar
process. The THS7530 is a dc-coupled, wide
bandwidth amplifier with voltage-controlled gain. The
amplifier has high-impedance differential inputs and
low-impedance differential outputs with high
bandwidth gain control, output common-mode control,
and output voltage clamping.
Signal channel performance is exceptional with
300-MHz bandwidth, and third harmonic distortion of
–61 dBc at 32 MHz with 1-V_PP output into 400 Ω.
Gain control is linear in dB with 0 V to 0.9 V varying
the gain from 11.6 dB to 46.5 dB with 38.8-dB/V gain
slope.
Output voltage limiting is provided to limit the output
voltage swing, and prevent saturating following
stages.
The device is characterized for operation over the
industrial temperature range, –40°C to +85°C.
V_S+ = 5 V
0.1 mF
0.1 mF
6.8 mF
24.9 W
0.1 mF
V_IN+
24.9 W
V_CL+
V_CL-
0.1 mF
V_IN-
V_OCM
PD
THS7530
0.1 mF
V_G-
V_S-
V_G+
33 pF
24.9 W
24.9 W
33 pF
0.1 mF
0.1 mF
V_OUT-
V_OUT+
AGC Detect
V_REF
1
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.
PowerPAD is a trademark of Texas Instruments.
2
All other trademarks are the property of their respective owners.
3
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 © 2002–2010, Texas Instruments Incorporated