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THS4521 PDF预览

THS4521

更新时间: 2024-02-20 06:42:40
品牌 Logo 应用领域
德州仪器 - TI 放大器输出元件输入元件
页数 文件大小 规格书
43页 1788K
描述
VERY LOW POWER, NEGATIVE RAIL INPUT, RAIL-TO-RAIL OUTPUT, FULLY DIFFERENTIAL AMPLIFIER

THS4521 技术参数

生命周期:Active零件包装代码:DFP
包装说明:QFP, SOP8,.4针数:8
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.33.00.01Factory Lead Time:6 weeks
风险等级:5.73放大器类型:OPERATIONAL AMPLIFIER
架构:VOLTAGE-FEEDBACK最大平均偏置电流 (IIB):0.9 µA
标称带宽 (3dB):2.2 MHz最小共模抑制比:80 dB
标称共模抑制比:105 dB频率补偿:YES
最大输入失调电流 (IIO):3.2 µA最大输入失调电压:5000 µV
JESD-30 代码:R-CDFP-G8长度:6.9 mm
低-偏置:NO低-失调:NO
微功率:NO功能数量:1
端子数量:8最高工作温度:210 °C
最低工作温度:-55 °C封装主体材料:CERAMIC, METAL-SEALED COFIRED
封装代码:QFP封装等效代码:SOP8,.4
封装形状:RECTANGULAR封装形式:FLATPACK
包装方法:TUBE峰值回流温度(摄氏度):NOT SPECIFIED
功率:NO电源:3.3 V
可编程功率:YES认证状态:Not Qualified
座面最大高度:2.8 mm标称压摆率:377.5 V/us
子类别:Operational Amplifier最大压摆率:1.4 mA
供电电压上限:3.6 V标称供电电压 (Vsup):3.3 V
表面贴装:YES温度等级:MILITARY
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
标称均一增益带宽:81000 kHz宽带:NO
宽度:5.65 mmBase Number Matches:1

THS4521 数据手册

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THS4521  
THS4522  
THS4524  
www.ti.com.................................................................................................................................................... SBOS458BDECEMBER 2008REVISED MAY 2009  
VERY LOW POWER, NEGATIVE RAIL INPUT, RAIL-TO-RAIL OUTPUT,  
FULLY DIFFERENTIAL AMPLIFIER  
1
FEATURES  
APPLICATIONS  
Low-Power SAR and ΔΣ ADC Drivers  
Low-Power Differential Driver  
Low-Power Differential Signal Conditioning  
2
Fully Differential Architecture  
Bandwidth: 145 MHz  
Slew Rate: 490 V/µs  
HD2: –133 dBc at 10 kHz (1 VRMS, RL = 1 k)  
HD3: –140 dBc at 10 kHz (1 VRMS, RL = 1 k)  
Input Voltage Noise: 4.6 nV/Hz (f = 100 kHz)  
NRI—Negative Rail Input  
DESCRIPTION  
The THS4521, THS4522, and THS4524 family of  
devices are very low-power, fully differential op amps  
with rail-to-rail output and an input common-mode  
range that includes the negative rail. These amplifiers  
are designed for low-power data acquisition systems  
RRO—Rail-to-Rail Output  
Output Common-Mode Control (with Low  
Offset and Drift)  
and  
high-density  
applications  
where  
power  
dissipation is a critical parameter.  
Power Supply:  
The family includes single (THS4521), dual  
(THS4522), and quad (THS4524) versions.  
Voltage: +2.5 V (±1.25 V) to +5.5 V (±2.75 V)  
Current: 1.14 mA/ch  
These fully differential op amps feature accurate  
output common-mode control that allows for  
dc-coupling when driving analog-to-digital converters  
(ADCs). This control, coupled with an input  
common-mode range below the negative rail as well  
as rail-to-rail output, allows for easy interfacing  
between single-ended, ground-referenced signal  
sources. Additionally, these devices are ideally suited  
for driving both successive-approximation register  
(SAR) and delta-sigma (ΔΣ) ADCs using only a single  
+3V to +5V and ground power supply.  
Power-Down Capability: 20 µA (typ)  
THS4521 and ADS1278 Combined Performance  
1 kW  
1.5 nF  
5 V  
49.9 W  
1 kW  
AINN1  
VIN+  
2.2 nF  
THS4521  
ADS1278 (CH 1)  
49.9 W  
VIN-  
AINP1 VCOM  
1 kW  
VOCM  
The THS4521, THS4522, and THS4524 family of fully  
differential op amps is characterized for operation  
over the full industrial temperature range from –40°C  
to +85°C.  
x1  
0.1 mF  
0.1 mF  
1/2  
OPA2350  
1.5 nF  
1 kW  
1-kHz FFT  
RELATED  
PRODUCTS  
0
-20  
-40  
-60  
-80  
G = 1  
RF = RG = 1 kW  
CF = 1.5 nF  
THD  
(dBc)  
VS = 5 V  
Load = 2 x 49.9 W + 2.2 nF  
BW  
(MHz)  
at 100  
kHz  
VN  
RAIL-  
DEVICE  
THS4520  
THS4121  
THS4130  
IQ (mA)  
15.3  
16  
(nV/Hz) TO-RAIL  
570  
100  
150  
–114  
–79  
2
Out  
In/Out  
No  
-100  
-120  
-140  
-160  
5.4  
1.3  
16  
–107  
0
4
8
12  
16  
20  
24 26  
Frequency (kHz)  
Tone  
Signal  
(dBFS)  
-0.50  
SINAD  
(dBc)  
105.5  
SFDR  
(dBc)  
113.7  
SNR (dBc) THD (dBc)  
-107.9  
(Hz)  
1 k  
109.1  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
All trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2008–2009, Texas Instruments Incorporated  
 
 

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