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THS4631DDA Datasheet(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part # THS4631DDA
Description  HIGH-VOLTAGE, HIGH SLEW RATE, WIDEBAND FET-INPUT OPERATIONAL AMPLIFIER
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

THS4631DDA Datasheet(HTML) 1 Page - National Semiconductor (TI)

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DGN−8
DDA−8
D−8
_
+
RF
CF
λ
−V(Bias)
RL
Photodiode Circuit
THS4631
www.ti.com
SLOS451B
– DECEMBER 2004 – REVISED AUGUST 2011
HIGH-VOLTAGE, HIGH SLEW RATE, WIDEBAND
FET-INPUT OPERATIONAL AMPLIFIER
Check for Samples: THS4631
1
FEATURES
DESCRIPTION
The THS4631 is a high-speed, FET-input operational
2
High Bandwidth:
amplifier designed for applications requiring wideband
– 325 MHz in Unity Gain
operation, high-input impedance, and high-power
– 210 MHz Gain Bandwidth Product
supply voltages. By providing a 210-MHz gain
bandwidth product,
±15-V supply operation, and
High Slew Rate:
100-pA input bias current, the THS4631 is capable of
– 900 V/µs (G = 2)
simultaneous wideband transimpedance gain and
– 1000 V/µs (G = 5)
large output signal swing. The fast 1000 V/
µs slew
rate allows for fast settling times and good harmonic
Low Distortion of
–76 dB, SFDR at 5 MHz
distortion at high frequencies. Low current and
Maximum Input Bias Current: 100 pA
voltage
noise
allow
amplification
of
extremely
Input Voltage Noise: 7 nV/
√Hz
low-level input signals while still maintaining a large
signal-to-noise ratio.
Maximum Input Offset Voltage: 500
µV at 25°C
Low Offset Drift: 2.5
µV/°C
The characteristics of the THS4631 make it ideally
suited for use as a wideband photodiode amplifier.
Input Impedance: 109 || 3.9 pF
Photodiode output current is a prime candidate for
Wide Supply Range:
± 5 V to ± 15 V
transimpedance amplification as shown below. Other
High Output Current: 95 mA
potential applications include test and measurement
systems requiring high-input impedance, ADC and
APPLICATIONS
DAC buffering, high-speed integration, and active
filtering.
Wideband Photodiode Amplifier
The THS4631 is offered in an 8-pin SOIC (D), and
High-Speed Transimpedance Gain Stage
the 8-pin SOIC (DDA) and MSOP (DGN) with
Test and Measurement Systems
PowerPAD
™ package.
Current-DAC Output Buffer
Related FET Input Amplifier Products
Active Filtering
SLEW
VOLTAGE
High-Speed Signal Integrator
VS
GBWP
MINIMUM
DEVICE
RATE
NOISE
(V)
(MHz)
GAIN
(V/
µS)
(nV/
√Hz)
High-Impedance Buffer
OPA656
±5
230
290
7
1
OPA657
±5
1600
700
4.8
7
OPA627
±15
16
55
4.5
1
THS4601
±15
180
100
5.4
1
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.
2
PowerPad is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright
© 2004–2011, 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.


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