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TI(德州仪器) THS4520
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  • TI(德州仪器) THS4520
  • TI(德州仪器) THS4520
  • TI(德州仪器) THS4520
  • TI(德州仪器) THS4520
  • TI(德州仪器) THS4520
  • TI(德州仪器) THS4520
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THS4520

THS4520

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轨到轨输出宽带全差分放大器

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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.

  • 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

Number of channels1
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)3
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)5.25
BW at Acl (MHz)620
Acl, min spec gain (V/V)1
Slew rate (typ) (V/µs)570
ArchitectureBipolar, Fully Differential ADC Driver
Vn at flatband (typ) (nV√Hz)2
Iq per channel (typ) (mA)14.2
Rail-to-railOut
Vos (offset voltage at 25°C) (max) (mV)2.5
Operating temperature range (°C)-40 to 85
Iout (typ) (mA)105
2nd harmonic (dBc)115
3rd harmonic (dBc)123
Frequency of harmonic distortion measurement (MHz)0.1
GBW (typ) (MHz)1200
Input bias current (max) (pA)10000000
FeaturesShutdown
CMRR (typ) (dB)84
RatingCatalog
VQFN (RGT)169 mm² 3 x 3
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