OP

A653

1

FEATURES

DESCRIPTION

APPLICATIONS

OPA653

V

OUT

V

IN-

V

IN+

160 W

49.9 W

160 W

49.9 W

0.1 F

m

10 F

m

0.1 F

m

10 F

m

+6V

-

6V

50-W

Load

50-W

Source

V

S+

V

S-

6

3

0

3

6

9

12

15

-

-

-

-

-

-

18

100k

1M

10M

100M

1G

Frequency(Hz)

V =200mV

O

PP

SMALL-SIGNALFREQUENCYRESPONSE

NONINVERTINGGAINOF+2V/V

50-

TESTENVIRONMENT

W

OPA653

Wideband, Fixed Gain, JFET-Input AMPLIFIER

2

• HIGH BANDWIDTH: 500 MHz (G = +2 V/V)

The

OPA653

combines

a

very

wideband

voltage-feedback

operational

amplifier

with

a

• HIGH SLEW RATE: 2675 V/µs (4-V Step)

JFET-input stage with internal gain setting resistors to

• EXCELLENT THD: –71dBc at 10 MHz

achieve an ultra-high, dynamic-range amplifier for

• LOW INPUT VOLTAGE NOISE: 6.1 nV/√Hz

fixed gain of +2-V/V or –1-V/V applications.

• FAST OVERDRIVE RECOVERY: 8 ns

The 500-MHz wide gain of +2-V/V bandwidth is

• FAST SETTLING TIME (1% 4-V Step): 7.9 ns

complemented by a very high 2675-V/

µs slew rate

and

fast

settling

time

that

make

it

ideal

for

• LOW INPUT OFFSET VOLTAGE: ±1 mV

time-domain and pulse-oriented applications.

• LOW INPUT BIAS CURRENT: ±10 pA

Excellent –72-dBc THD distortion performance at

10 MHz makes the OPA653 an excellent choice for

• INTERNAL GAIN SETTING RESISTORS:

frequency-domain and FFT analysis applications.

G = +2 V/V or G = –1 V/V

Additionally, with the low 6.1-nV/

√Hz voltage noise,

• HIGH OUTPUT CURRENT: 70 mA

low bias current, and high impedance JFET input, it

supports very low noise, wideband, high input

impedance

applications.

Examples

include

• TEST AND MEASUREMENT FRONT-END

high-impedance probes, data acquisition cards, and

• HIGH-INPUT IMPEDANCE PROBES

oscilloscope front-ends.

• DATA ACQUISITION CARDS

RELATED

• OSCILLOSCOPE INPUT

OPERATIONAL AMPLIFIER

• ADC INPUT AMPLIFIER

PRODUCTS

VOLTAGE

SLEW

BW

RATE

NOISE

AMPLIFIER

DEVICE

(MHz)

(V/

µs)

(nV/

√Hz)

DESCRIPTION

Unity-Gain

OPA356

+5

200

300

5.80

Stable CMOS

Unity-Gain

OPA656

±5

500

290

7

Stable

JFET-Input

Gain of +7

OPA657

±5

350

700

4.8

Stable

JFET-Input

Unity-Gain

OPA659

±6

650

2550

8.9

Stable

JFET-Input

Unity-Gain

THS4631

±15

105

900

7

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.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2008, 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.