型号THS4511
品牌
分类射频 FDA
描述1.6GHz、单位增益稳定、宽带、低噪声、低失真、全差分放大器
相关操作
产品概述

参数

Number of channels 1
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3.75
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.25
BW at Acl (MHz) 1600
Acl, min spec gain (V/V) 1
Slew rate (typ) (V/µs) 4900
Architecture Bipolar, Fully Differential ADC Driver
Vn at flatband (typ) (nV√Hz) 2
Iq per channel (typ) (mA) 39.2
Rail-to-rail In to V-
Vos (offset voltage at 25°C) (max) (mV) 4
Operating temperature range (°C) -40 to 85
Iout (typ) (mA) 96
2nd harmonic (dBc) 117
3rd harmonic (dBc) 106
Frequency of harmonic distortion measurement (MHz) 10
GBW (typ) (MHz) 2000
Input bias current (max) (pA) 15500000
Features Shutdown
CMRR (typ) (dB) 90
Rating Catalog

封装 | 引脚 | 尺寸

VQFN (RGT) 16 9 mm² 3 x 3

特性

  • Fully-Differential Architecture
  • Common-Mode Input Range Includes the Negative Rail
  • Unity-Gain Stable
  • Bandwidth: 1.6 GHz (Gain = 0 dB)
  • Slew Rate: 4900 V/µs
  • 1% Settling Time: 3.3 ns
  • HD2: –72 dBc at 70 MHz
  • HD3: –87 dBc at 70 MHz
  • OIP2: 76 dBm at 70 MHz
  • OIP3: 42 dBm at 70 MHz
  • Input Voltage Noise: 2 nV/√Hz (f > 10 MHz)
  • Noise Figure: 21.8 dB (50- System, G=6dB)
  • Output Common-Mode Control
  • 5-V Power-Supply Current: 39.2 mA
  • Power-Down Capability: 0.65 mA
  • APPLICATIONS
    • 5-V Data-Acquisition Systems
    • High Linearity ADC Amplifiers
    • Wireless Communication
    • Medical Imaging
    • Test and Measurement

说明

The THS4511 is a wideband, fully-differential operational amplifier designed for single-supply 5-V data-acquisition systems. It has very low noise at 2 nV/√Hz, and extremely low harmonic distortion of –72 dBc HD2 and –87 dBc HD3 at 70 MHz with 2 VPP, G= 0 dB, and 200- load. Slew rate is very high at 4900 Vµs and with settling time of 3.3 ns to 1% (2 V step) it is ideal for pulsed applications. It is designed for minimum gain of 0 dB.

To allow for dc coupling to analog-to-digital converters (ADCs), its unique output common-mode control circuit maintains the output common-mode voltage within 5-mV offset (typical) from the set voltage, when set within ±0.5 V of midsupply. The common-mode set point is set to midsupply by internal circuitry, which may be over-driven from an external source.

The THS4511 is a high-performance amplifier that has been optimized for use in 5-V single-supply data acquisition systems. The output has been optimized for best performance with its common-mode voltages set to midsupply, and the input has been optimized for performance over a wide range of common-mode input voltages. High performance at a low power-supply voltage enables single-supply 5-V data-acquisition systems while minimizing component count.

The THS4511 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.