THS4520 Rail-to-Rail Output Wideband Fully Differential Amplifier | TI.com

THS4520 (ACTIVE)

Rail-to-Rail Output Wideband Fully Differential Amplifier

 

Description

The THS4520 is a wideband, fully differential operational amplifier designed for 5-V data acquisition systems. It has very low noise at 2 nV/ load. The slew rate is 570 V/µs, and with a settling time of 7 ns to 0.1% (2-V step), it is ideal for data acquisition applications. It is designed for unity gain stability.

To allow for dc coupling to ADCs, its unique output common-mode control circuit maintains the output common-mode voltage within 0.25 mV offset (typical) from the set voltage. The common-mode set point defaults to mid-supply by internal circuitry, which may be over-driven from an external source.

The input and output are optimized for best performance with their common-mode voltages set to mid-supply. Along with high performance at low power supply voltage, this makes for extremely high performance single supply 5-V and 3.3-V data acquisition systems.

The THS4520 is offered in a Quad 16-pin leadless QFN package (RGT), and is characterized for operation over the full industrial temperature range from –40°C to 85°C.

Features

  • Fully Differential Architecture With Rail-to-Rail Outputs
  • Centered Input Common-mode Range
  • Minimum Gain of 1 V/V (0 dB)
  • Bandwidth: 620 MHz
  • Slew Rate: 570 V/µs
  • 0.1% Settling Time: 7 ns
  • HD2: –115 dBc at 100 kHz, VOD = 8 VPP
  • HD3: –123 dBc at 100 kHz, VOD = 8 VPP
  • Input Voltage Noise: 2 nV/Hz (f >10 kHz)
  • Output Common-Mode Control
  • Power Supply:
    • Voltage: 3.3 V (±1.65 V) to 5 V (±2.5 V)
    • Current: 14.2 mA
  • Power-Down Capability: 15 µA
  • APPLICATIONS
    • 5-V and 3.3-V Data Acquisition Systems
    • High Linearity ADC Amplifier
    • Wireless Communication
    • Test and Measurement
    • Voice Processing Systems

Parametrics

Compare all products in Fully differential amplifiers Email Download to Excel
Part number Order 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) Iq per channel (Typ) (mA) Rail-to-rail Vos (offset voltage @ 25 C) (Max) (mV) Operating temperature range (C) Package Group Output current (Typ) (mA) 2nd harmonic (dBc) 3rd harmonic (dBc) Package size: mm2:W x L (PKG) GBW (Typ) (MHz) Input bias current (Max) (pA) @ MHz CMRR (Typ) (dB)
THS4520 Order now 1     3     5.25     620     1     570     2     14.2     Out     2.5     -40 to 85     VQFN | 16     105     115     123     16VQFN: 9 mm2: 3 x 3 (VQFN | 16)     1200     10000000     0.1     84    
THS4120 Samples not available 1     3     3.5     100     1     55     5.4     11     In to V+
Out    
8     -40 to 85
0 to 70    
MSOP-PowerPAD | 8
SOIC | 8
VSSOP | 8    
25     79     93     8MSOP-PowerPAD: 15 mm2: 4.9 x 3 (MSOP-PowerPAD | 8)
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
100     1.2     1     96    
THS4121 Order now 1     3     3.5     100     1     55     5.4     11     In to V+
Out    
8     -40 to 85
0 to 70    
MSOP-PowerPAD | 8
SOIC | 8
VSSOP | 8    
25     79     93     8MSOP-PowerPAD: 15 mm2: 4.9 x 3 (MSOP-PowerPAD | 8)
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
100     1.2     1     96