OPA653 Datasheet: JFET-Input AMPLIFIER





OPA653 JFET-Input AMPLIFIER Datasheet

Part Number OPA653
Description JFET-Input AMPLIFIER
Manufacture etcTI
Total Page 19 Pages
PDF Download Download OPA653 Datasheet PDF

Features: OPA653OPA653 www.ti.com................ ....................................... ....................................... ....................................... ....................................... ............... SBOS348 – DECEMBER 20 08 Wideband, Fixed Gain, JFET-Input AMP LIFIER FEATURES 1 •2 HIGH BANDWIDTH: 500 MHz (G = +2 V/V) • HIGH SLEW RAT E: 2675 V/µs (4-V Step) • EXCELLENT THD: –71dBc at 10 MHz • LOW INPUT V OLTAGE NOISE: 6.1 nV/√Hz • FAST OVE RDRIVE RECOVERY: 8 ns • FAST SETTLING TIME (1% 4-V Step): 7.9 ns • LOW INP UT OFFSET VOLTAGE: ±1 mV • LOW INPUT BIAS CURRENT: ±10 pA • HIGH INPUT I MPEDANCE: 1012 Ω||2.5 pF • INTERNAL GAIN SETTING RESISTORS: G = +2 V/V or G = –1 V/V • HIGH OUTPUT CURRENT: 7 0 mA APPLICATIONS • TEST AND MEASURE MENT FRONT-END • HIGH-INPUT IMPEDANCE PROBES • DATA ACQUISITION CARDS • OSCILLOSCOPE INPUT • ADC INPUT AMPLIF IER NONINVERTING GAIN OF +2 V/V 50-W TE ST ENVIRONMENT +6 V 50-W Source 49.9 W VIN+ VIN- 160 W VS+ OPA653 0.1 mF 10 mF VOUT 49.9 W 50-W Load .

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OPA653OPA653
www.ti.com........................................................................................................................................................................................... SBOS348 – DECEMBER 2008
Wideband, Fixed Gain, JFET-Input AMPLIFIER
FEATURES
1
2 HIGH BANDWIDTH: 500 MHz (G = +2 V/V)
HIGH SLEW RATE: 2675 V/µs (4-V Step)
EXCELLENT THD: –71dBc at 10 MHz
LOW INPUT VOLTAGE NOISE: 6.1 nV/Hz
FAST OVERDRIVE RECOVERY: 8 ns
FAST SETTLING TIME (1% 4-V Step): 7.9 ns
LOW INPUT OFFSET VOLTAGE: ±1 mV
LOW INPUT BIAS CURRENT: ±10 pA
HIGH INPUT IMPEDANCE: 1012 ||2.5 pF
INTERNAL GAIN SETTING RESISTORS:
G = +2 V/V or G = –1 V/V
HIGH OUTPUT CURRENT: 70 mA
APPLICATIONS
TEST AND MEASUREMENT FRONT-END
HIGH-INPUT IMPEDANCE PROBES
DATA ACQUISITION CARDS
OSCILLOSCOPE INPUT
ADC INPUT AMPLIFIER
NONINVERTING GAIN OF +2 V/V
50-W TEST ENVIRONMENT
+6 V
50-W
Source
49.9 W
VIN+
VIN- 160 W
VS+
OPA653
0.1 mF
10 mF
VOUT 49.9 W
50-W
Load
160 W
VS-
-6 V
0.1 mF
10 mF
SMALL-SIGNAL FREQUENCY RESPONSE
6
3
0
-3
-6
-9
-12
-15
-18 VO = 200 mVPP
100 k
1M
10 M
Frequency (Hz)
100 M
1G
DESCRIPTION
The OPA653 combines a very wideband
voltage-feedback operational amplifier with a
JFET-input stage with internal gain setting resistors to
achieve an ultra-high, dynamic-range amplifier for
fixed gain of +2-V/V or –1-V/V applications.
The 500-MHz wide gain of +2-V/V bandwidth is
complemented by a very high 2675-V/µs slew rate
and fast settling time that make it ideal for
time-domain and pulse-oriented applications.
Excellent –72-dBc THD distortion performance at
10 MHz makes the OPA653 an excellent choice for
frequency-domain and FFT analysis applications.
Additionally, with the low 6.1-nV/Hz voltage noise,
low bias current, and high impedance JFET input, it
supports very low noise, wideband, high input
impedance applications. Examples include
high-impedance probes, data acquisition cards, and
oscilloscope front-ends.
RELATED
OPERATIONAL AMPLIFIER
PRODUCTS
DEVICE
OPA356
VS (V)
+5
OPA656 ±5
OPA657 ±5
OPA659 ±6
THS4631 ±15
BW
(MHz)
200
500
350
650
105
SLEW
RATE
(V/µs)
300
290
700
2550
900
VOLTAGE
NOISE
(nV/Hz)
5.80
7
4.8
8.9
7
AMPLIFIER
DESCRIPTION
Unity-Gain
Stable CMOS
Unity-Gain
Stable
JFET-Input
Gain of +7
Stable
JFET-Input
Unity-Gain
Stable
JFET-Input
Unity-Gain
Stable
JFET-Input
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.
All trademarks are the property of their respective owners.
2
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 © 2008, Texas Instruments Incorporated

                    
                    






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