Home Amplifiers Fully differential amplifiers
Home
Amplifiers
Fully differential amplifiers

THS4121

ACTIVE

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

Order now
Data sheet

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
HVSSOP (DGN) 8 14.7 mm² 3 x 4.9 SOIC (D) 8 29.4 mm² 4.9 x 6 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • 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.
filter Find other Fully differential amplifiers
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Same functionality with different pin-out to the compared device
OPA862 ACTIVE 12.6V, Low-noise, single-ended-to-differential, high input impedance amplifier High input impedance, wider supply (12.6 V), lower noise (2.3 nV√Hz), and higher precision (0.325 mV)

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 6
Type Title Date
* Data sheet THS4120, THS4121: High-Speed Fully Differential-I/O Amplifier datasheet (Rev. D) 13 Oct 2004
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
Application note Fully-Differential Amplifiers (Rev. E) 19 Sep 2016
Application note Noise Analysis for High Speed Op Amps (Rev. A) 17 Jan 2005
Application note High-Voltage Signal Conditioning for Differential ADCs 14 Jun 2004
EVM User's guide THS4121 EVM User's Guide 11 Jul 2001

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Simulation model

THS4121 PSpice Model

SLOJ158.ZIP (5 KB) - PSpice Model
Download
Calculation tool

SBOR022 — TI FDA Calculator

Supported products & hardware

Supported products & hardware

Products
Fully differential amplifiers
LMH6550 — 400MHz, Differential, High Speed Op Amps LMH6551 — 370MHz, Differential, High Speed Op Amp LMH6552 — 1.5 GHz Fully Differential Amplifier LMH6553 — 900 MHz Fully Differential Amplifier with Output Limiting Clamp LMH6554 — 2.8 GHz Ultra Linear Fully Differential Amplifier LMP8350 — Ultra Low Distortion Fully Differential Precision ADC Driver with Selectable Power Modes OPA862 — 12.6V, Low-noise, single-ended-to-differential, high input impedance amplifier THS4120 — 3.3 V, 100 MHz, 43 V/us, Fully Differential CMOS Amplifier w/Shutdown THS4121 — 3.3 V, 100 MHz, 43 V/us, Fully Differential CMOS Amplifier THS4130 — 150MHz, Fully Differential Input/Output Low Noise Amplifier With Shutdown THS4131 — Fully Differential Input/Output Low Noise Amplifier THS4140 — 160MHz, Fully Differential Input/Output High Slew Rate Amplifier With Shutdown THS4141 — 160MHz, Fully Differential Input/Output High Slew Rate Amplifier THS4150 — 150MHz, Fully Differential Input/Output High Slew Rate Amplifier With Shutdown THS4151 — 150MHz, Fully Differential Input/Output High Slew Rate Amplifier THS4500 — 15V, High-Speed Fully Differential Amplifier with power-down THS4501 — High-Speed Fully Differential Amplifier, +/-5 V THS4503 — High-Speed Fully-Differential Amplifiers THS4504 — Wideband, Low Distortion Fully Differential Amplifier with Shutdown THS4505 — Wideband, Low-Distortion Fully Differential Amplifier THS4508 — Wideband Fully Differential Amplifier THS4509 — 1.9-GHz, Wideband, Low-Noise, Low-Distortion, Fully-Differential Amplifier THS4511 — 1.6-GHz, unity-gain stable, wideband, low-noise, low distortion fully differential amplifier THS4513 — 1.6-GHz, min gain 1-V/V, low-noise, low distortion fully differential amplifier THS4520 — Rail-to-Rail Output Wideband Fully Differential Amplifier THS4521 — Very low power rail-to-rail output fully differential amplifier THS4522 — Very low power dual channel rail-to-rail output fully differential amplifier THS4524 — Very low power quad channel rail-to-rail output fully differential amplifier THS4531 — Ultra low power 0.25mA, RRO, fully differential amplifier THS4531A — Ultra Low Power, RRO, Fully-Differential Amplifier THS4532 — Dual, Ultra low power 0.25mA, RRO, fully differential amplifier THS4541 — High-Speed Differential I/O Amplifier THS4551 — Low Noise, Precision, 150MHz, Fully Differential Amplifier THS4552 — Dual Channel, Low-Noise, Precision, 150-MHz, Fully Differential Amplifier THS4561 — Low-power, 60-MHz, wide-supply-range fully differential amplifier THS4567 — 220-MHz CMOS input fully differential amplifier with VICM and VOCM control THS770006 — High-Speed Fully Differential ADC Driver Amplifier with +6dB Fixed Gain
Audio op amps
OPA1637 — High-fidelity, high-voltage (36-V), low-noise (3.7-nV/rtHz) Burr-Brown™ audio fully-differential amp
Precision op amps (Vos<1mV)
THP210 — High precision (40-μV, 0.1μV/C), high-voltage (36-V), low-noise (3.7-nV/√Hz), fully-differential amp
RF FDAs
LMH3401 — 7-GHz, Ultra-Wideband, Fully Differential Amplifier LMH5401 — 8-GHz Ultra wideband fully differential amplifier
Download
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Request
Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
User guide: PDF
View Options
Package Pins CAD symbols, footprints & 3D models
HVSSOP (DGN) 8 Ultra Librarian
SOIC (D) 8 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos