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THS4121

ACTIVE

3.3 V, 100 MHz, 43 V/us, Fully Differential CMOS Amplifier

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Data sheet

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NEW THS4536 ACTIVE Ultra-High Precision CMOS NRI/RRO Fully Differential Amplifier Wider supply voltage (5.5V), higher max precision (20µV, 0.8μV/°C), lower noise (4.3nV/√Hz), lower Iq (4.7mA) and wider temperature range (-45 to 125°C)

THS4121

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 3.5 BW at Acl (MHz) 100 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 55 Architecture Fully Differential ADC Driver, High Input Impedance Vn at flatband (typ) (nV√Hz) 5.4 Iq per channel (typ) (mA) 11 Rail-to-rail In to V+, Out Vos (offset voltage at 25°C) (max) (mV) 8 Operating temperature range (°C) -40 to 85 Iout (typ) (mA) 25 2nd harmonic (dBc) 79 3rd harmonic (dBc) 93 Frequency of harmonic distortion measurement (MHz) 1 GBW (typ) (MHz) 100 Input bias current (max) (pA) 1.2 CMRR (typ) (dB) 96 Rating Catalog
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 3.5 BW at Acl (MHz) 100 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 55 Architecture Fully Differential ADC Driver, High Input Impedance Vn at flatband (typ) (nV√Hz) 5.4 Iq per channel (typ) (mA) 11 Rail-to-rail In to V+, Out Vos (offset voltage at 25°C) (max) (mV) 8 Operating temperature range (°C) -40 to 85 Iout (typ) (mA) 25 2nd harmonic (dBc) 79 3rd harmonic (dBc) 93 Frequency of harmonic distortion measurement (MHz) 1 GBW (typ) (MHz) 100 Input bias current (max) (pA) 1.2 CMRR (typ) (dB) 96 Rating Catalog
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm) HVSSOP (DGN) 8 14.7 mm² (3 mm × 4.9 mm)
  • High Performance
    • 100 MHz –3 dB Bandwidth
    • 50 V/µs Slew Rate
    • –75 dB Total Harmonic Distortion at 1 MHz (VO = 2 VPP)
    • 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
    • VDD = 3.3 V
  • KEY APPLICATIONS
    • Simple Single-Ended To Differential Conversion
    • Differential ADC Driver/Differential Antialiasing
    • Differential Transmitter And Receiver
    • Output Level Shifter

PowerPAD is a trademark of Texas Instruments.
  • High Performance
    • 100 MHz –3 dB Bandwidth
    • 50 V/µs Slew Rate
    • –75 dB Total Harmonic Distortion at 1 MHz (VO = 2 VPP)
    • 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
    • VDD = 3.3 V
  • KEY APPLICATIONS
    • Simple Single-Ended To Differential Conversion
    • Differential ADC Driver/Differential Antialiasing
    • Differential Transmitter And Receiver
    • Output Level Shifter

PowerPAD is a trademark of Texas Instruments.

The THS412x is one in a family of fully differential-input, differential-output devices fabricated using Texas Instruments’ state-of-the-art submicron CMOS process.

The THS412x consists of a true fully-differential signal path from input to output. This results in excellent common-mode noise rejection and improved total harmonic distortion.

The THS412x is one in a family of fully differential-input, differential-output devices fabricated using Texas Instruments’ state-of-the-art submicron CMOS process.

The THS412x consists of a true fully-differential signal path from input to output. This results in excellent common-mode noise rejection and improved total harmonic distortion.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet THS4120, THS4121: High-Speed Fully Differential-I/O Amplifier datasheet (Rev. D) Oct 13, 2004
E-book The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML Mar 28, 2017
Application note Fully-Differential Amplifiers (Rev. E) Sep 19, 2016
Application note High-Voltage Signal Conditioning for Differential ADCs Jun 14, 2004

Design & development

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Simulation model

THS4121 PSpice Model

SLOJ158.ZIP (5 KB) - PSpice model
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Calculation tool

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Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
SOIC (D) 8 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
HVSSOP (DGN) 8 Ultra Librarian
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