50W

50W

200W

V

OCM

200W

V

IN-

V

IN+

30MHz

Bandpass

Filter

THS770012

R

O

V

OCM

R

O

16-Bit ADC

A

IN-

A

IN+

(G=12dB)

0

60

Frequency - MHz

0

-10

-20

-30

-40

-50

-60

-70

-80

-90

-100

-110

-120

-130

25

30 35

5

15

20

55

40

45 50

10

65

THS770012

www.ti.com

SLOS669C

– FEBRUARY 2010 – REVISED JANUARY 2012

Broadband, Fully-Differential, 14-/16-Bit ADC Driver Amplifier

Check for Samples: THS770012

1

FEATURES

DESCRIPTION

The THS770012 is a wideband, fully-differential

23

•

900MHz Bandwidth at Gain of +10dB

amplifier, with adjustable gain range from +10dB to

•

3300V/

+13.7dB (with external components). It is designed

•

Adjustable Gain: +10dB to +13.7dB

and

optimized

specifically

for

driving

16-bit

analog-to-digital

converters

(ADCs)

at

input

•

frequencies up to 130MHz, and 14-bit ADCs at input

f = 100MHz

frequencies up to 200MHz. This device provides high

•

OIP3: 47dBm, f = 100MHz

bandwidth, high-voltage output with low distortion and

•

Noise Figure: 10.7 dB, f = 100MHz

low noise, critical in high-speed data acquisition

systems that require very high dynamic range, such

as wireless base stations and test and measurement

APPLICATIONS

applications. This device also makes an excellent

•

14-/16-Bit ADC Driver

differential amplifier for general-purpose, high-speed

•

ADC Driver for Wireless Base Station Signal

differential

signal

chain

and

short

line

driver

Chains: GSM, WCDMA, MC-GSM, LTE

applications.

•

ADC Driver for High Dynamic Range Test and

The THS770012 operates on a nominal +5V single

Measurement Equipment

supply, offers very fast, 7.5ns maximum recovery

time

from

overdrive

conditions,

and

has

a

Figure 1. THS770012 Driving 16-Bit ADC

power-down mode for power saving. The THS770012

is offered in a Pb-free (RoHS compliant) and green,

QFN-24

thermally-enhanced

package.

It

is

characterized

for

operation

over

the

industrial

temperature range of

–40°C to +85°C.

RELATED DEVICES

DEVICE

DESCRIPTION

Fixed Gain of +6dB, wideband, low-noise,

THS770006

low-distortion, fully-differential amplifier

Wideband, low-noise, low-distortion,

THS4509

Figure 2. FFT Plot with Two-Tone Input at 96MHz

fully-differential amplifier

and 100MHz (see Application Information section)

Wideband, low-noise, low-distortion,

PGA870

fully-differential, digitally-programmable

gain amplifier

ADS5481 to

16-bit, 80MSPS to 200MSPS ADCs

ADS5485

ADS6145

14-bit, 125MSPS ADC

ADS6149

14-bit, 250MSPS ADC

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.

3

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright

© 2010–2012, 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.