型号THS4509-Q1
品牌
分类射频 FDA
描述汽车类宽带运算放大器
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
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.25
BW at Acl (MHz) 2000
Acl, min spec gain (V/V) 2
Slew rate (typ) (V/µs) 6600
Architecture Bipolar, Fully Differential ADC Driver
Vn at flatband (typ) (nV√Hz) 1.9
Iq per channel (typ) (mA) 37.7
Rail-to-rail No
Vos (offset voltage at 25°C) (max) (mV) 4
Operating temperature range (°C) -40 to 125
Iout (typ) (mA) 96
TI functional safety category Functional Safety-Capable
2nd harmonic (dBc) 104
3rd harmonic (dBc) 108
Frequency of harmonic distortion measurement (MHz) 10
GBW (typ) (MHz) 3000
Input bias current (max) (pA) 18500000
Features Decompensated, Shutdown
CMRR (typ) (dB) 90
Rating Automotive

封装 | 引脚 | 尺寸

VQFN (RGT) 16 9 mm² 3 x 3

特性

  • Qualified for Automotive Applications
  • Fully Differential Architecture
  • Centered Input Common-Mode Range
  • Minimum Gain of 2V/V (6 dB)
  • Bandwidth: 1900 MHz
  • Slew Rate: 6600 V/µs
  • 1% Settling Time: 2 ns
  • HD2: –75 dBc at 100 MHz
  • HD3: –80 dBc at 100 MHz
  • OIP2: 73 dBm at 70 MHz
  • OIP3: 37 dBm at 70 MHz
  • Input Voltage Noise: 1.9 nV/√Hz (f>10MHz)
  • Noise Figure: 17.1 dB
  • Output Common-Mode Control
  • Power Supply:
    • Voltage: 3 V (±1.5 V) to 5 V (±2.5 V)
    • Current: 37.7 mA
  • Power-Down Capability: 0.65 mA

说明

The THS4509-Q1 is a wideband, fully differential operational amplifier designed for 5-V data-acquisition systems. It has very low noise at 1.9nV/√Hz, and extremely low harmonic distortion of –75-dBc HD2 and –80-dBc HD3 at 100MHz with 2Vpp, G=10dB, and 1-kΩ load. Slew rate is very high at 6600V/µs and with settling time of 2ns to 1% (2-V step), it is ideal for pulsed applications. It is designed for minimum gain of 6dB but is optimized for gain of 10dB.

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 3-mV offset (typical) from the set voltage, when set within 0.5V of mid-supply, with less than 4-mV differential offset voltage. The common-mode set point is set to mid-supply by internal circuitry, which may be overdriven 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 data-acquisition systems.

The THS4509-Q1 is offered in a quad 16-pin leadless QFN package (RGT) and is characterized for operation over the full automotive temperature range from –40°C to 125°C.