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FEATURES

KEY APPLICATIONS

THS4121

D, DGN, OR DGK PACKAGE

(TOP VIEW)

1

2

3

4

8

7

6

5

NC

GND

THS4120

D, DGN, OR DGK PACKAGE

(TOP VIEW)

1

2

3

4

8

7

6

5

PD

GND

DESCRIPTION

+

DIGITAL

OUTPUT

−

+

−

3.3 V

TYPICAL A/D APPLICATION CIRCUIT

THS4120

THS4121

SLOS319D – FEBRUARY 2001 – REVISED OCTOBER 2004

HIGH-SPEED FULLY DIFFERENTIAL I/O AMPLIFIERS

•

Simple Single-Ended To Differential

•

High Performance

Conversion

– 100 MHz, –3 dB Bandwidth

•

Differential ADC Driver/Differential

– 50 V/µs Slew Rate

Antialiasing

– 75 dB Total Harmonic Distortion at 1 MHz

•

Differential Transmitter and Receiver

•

Output Level Shifter

– 5.4 nV/

√Hz Input-Referred Noise (10 kHz)

•

Differential Input/Differential Output

– Balanced Outputs Reject Common-Mode

Noise

– Differential Reduced Second Harmonic

Distortion

•

Power Supply Range

The THS412x is one in a family of fully differen-

HIGH-SPEED DIFFERENTIAL I/O FAMILY

tial-input, differential-output devices fabricated using

Texas Instruments' state-of-the-art submicron CMOS

NUMBER OF

DEVICE

POWERDOWN

process.

CHANNELS

1

Yes

The THS412x consists of a true fully-differential

signal path from input to output. This results in

THS4121

1

–

excellent

common-mode

noise

rejection

and

(1)

For proper functiionality, an external 10-k

Ω pullup resistor is

improved total harmonic distortion.

required between the PD pin and the positive supply.

RELATED DEVICES

SINGLE SUPPLY

SPLIT SUPPLY

DESCRIPTION

VOLTAGE RANGE

VOLTAGE RANGE

THS413x

150 MHz, 51 V/µs, 1.3 nV/

√Hz

5 V to 30 V

±2.5 to ±15

THS414x

160 MHz, 450 V/µs, 6.5 nV/

√Hz

5 V to 30 V

±2.5 to ±15

THS415x

150 MHz, 650 V/µs, 7.6 nV/

√Hz

5 V to 30 V

±2.5 to ±15

(1)

See the TI Web site for additional high-speed amplifier devices.

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.

PRODUCTION DATA information is current as of publication date.

Copyright © 2001–2004, 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.