THS3121 Single, Low Noise, High Output Drive, 475mA Current-Feedback Amplifier | TI.com

THS3121 (ACTIVE) Single, Low Noise, High Output Drive, 475mA Current-Feedback Amplifier

 

Description

The THS3120 and THS3121 are low-noise, high-voltage, high output current drive, current-feedback amplifiers designed to operate over a wide supply range of ±5 V to ±15 V for today's high-performance applications.

The THS3120 offers a power saving mode by providing a power-down pin for reducing the 7-mA quiescent current of the device, when the device is not active.

These amplifiers provide well-regulated ac performance characteristics. Most notably, the 0.1-dB flat bandwidth is exceedingly high, reaching beyond 90 MHz. The unity-gain bandwidth of 130 MHz allows for good distortion characteristics at 10 MHz. Coupled with high 1700-V/µs slew rate, the THS3120 and THS3121 amplifiers allow for high output voltage swings at high frequencies.

The THS3120 and THS3121 are offered in an SOIC-8 (D) package and an MSOP-8 (DGN) PowerPAD package.

Features

  • Low Noise:
    • 1 pA/√Hz Noninverting Current Noise
    • 10 pA/√Hz Inverting Current Noise
    • 2.5 nV/√Hz Voltage Noise
  • High Output Current Drive: 475 mA
  • High Slew Rate:
    • 1700 V/µs (RL = 50 , VO = 8 VPP)
  • Wide Bandwidth: 120 MHz (G = 2, RL = 50 )
  • Wide Supply Range: ±5 V to ±15 V
  • Power-Down Feature: (THS3120 Only)
  • APPLICATIONS
    • Video Distribution
    • Power FET Driver
    • Pin Driver
    • Capacitive Load Driver

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Parametrics

Compare all products in High-speed op amps (GBW>=50MHz) Email Download to Excel
Part number Order Architecture Number of channels (#) Total supply voltage (Min) (+5V=5, +/-5V=10) Total supply voltage (Max) (+5V=5, +/-5V=10) BW @ Acl (MHz) Acl, min spec gain (V/V) Slew rate (Typ) (V/us) Vn at flatband (Typ) (nV/rtHz) Vn at 1 kHz (Typ) (nV/rtHz) Iq per channel (Typ) (mA) Vos (offset voltage @ 25 C) (Max) (mV) Rail-to-rail Features Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) CMRR (Typ) (dB) Input bias current (Max) (pA) Offset drift (Typ) (uV/C) GBW (Typ) (MHz) Output current (Typ) (mA) 2nd harmonic (dBc) 3rd harmonic (dBc) @ MHz
THS3121 Order now Bipolar
Current FB    
1     10     30     130     1     1500     2.5     2.5     3.5     10     No         Catalog     -40 to 85     MSOP-PowerPAD | 8
SOIC | 8    
8MSOP-PowerPAD: 15 mm2: 4.9 x 3 (MSOP-PowerPAD | 8)
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)    
70     4000000     10     130     475     51     50     10    
THS3120 Order now Bipolar
Current FB    
1     10     30     130     1     1500     2.5     2.5     3.5     10     No     Shutdown     Catalog     -40 to 85     MSOP-PowerPAD | 8
SOIC | 8    
8MSOP-PowerPAD: 15 mm2: 4.9 x 3 (MSOP-PowerPAD | 8)
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)    
70     4000000     10     130     475     51     50     10