FEATURES
APPLICATIONS
DESCRIPTION
ADS5520
.......................................................................................................................................................SBAS310F–MAY 2004–REVISED OCTOBER 2008
12-Bit,125MSPS Analog-To-Digital Converter
THS9001,OPA695,OPA847
•12-Bit Resolution
•125MSPS Sample Rate
•
Wireless Communication
•High SNR:69.7dBFS at 100MHz f IN –Communication Receivers •High SFDR:82dBc at 100MHz f IN –Ba Station Infrastructure
• 2.3-V PP Differential Input Voltage •Test and Measurement Instrumentation •Internal Voltage Reference •Single and Multichannel Digital Receivers • 3.3-V Single-Supply Voltage
•
Communication Instrumentation •Analog Power Dissipation:578mW –Radar •Serial Programming Interface –Infrared
•TQFP-64PowerPAD™Package •Video and Imaging •
Medical Equipment
•
Recommended Op Amps:
THS3201,THS3202,THS4503,THS4509,
The ADS5520is a high-performance,12-Bit,125MSPS analog-to-digital converter (ADC).To provide a complete converter solution,it includes a high-bandwidth linear sample-and-hold stage (S&H)and internal reference.Designed for applications demanding the highest speed and highest dynamic performance in little space,the ADS5520has excellent power consumption of 578mW at 3.3-V single-supply voltage.This allows an even higher system integration density.The provided internal reference simplifies system design requirements.Parallel CMOS-compatible output ensures amless interfacing with common logic.
The ADS5520is available in a 64-pin TQFP PowerPAD package over the industrial temperature range.
Table 1.ADS5500Product Family
80MSPS
105MSPS 125MSPS 12Bit ADS5522ADS5521ADS552014Bit
ADS5542
ADS5541
ADS5500
Plea be aware that an important notice concerning availability,standard warranty,and u in critical applications of Texas Instruments miconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.Copyright ©2004–2008,Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas Instruments standard warranty.Production processing does not necessarily include testing of all parameters.
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CLK+CLK−
V IN+
V IN−
CM
GND
GND
ADS5520
SBAS310F–MAY 2004–REVISED
This integrated circuit can be damaged by ESD.Texas Instruments recommends that all integrated circuits be handled with appropriate precautions.Failure to obrve proper handling and installation procedures can cau damage.
ESD damage can range from subtle performance degradation to complete device failure.Precision integrated circuits may be more susceptible to damage becau very small parametric changes could cau the device not to meet its published specifications.
ORDERING INFORMATION (1)
SPECIFIED PACKAGE TEMPERATURE
PACKAGE ORDERING TRANSPORT PRODUCT PACKAGE-LEAD DESIGNATOR
RANGE MARKING NUMBER MEDIA,QUANTITY
ADS5520IPAP Tray,160HTQFP-64(2)ADS5520PAP
–40°C to 85°C
ADS5520I
PowerPAD
ADS5520IPAPR
Tape and Reel,1000
(1)For the most current package and ordering information,e the Package Option Addendum at the end of this data sheet.
(2)
Thermal pad size:3,5mm x 3,5mm (min),4mm x 4mm (max).θJA =21.47°C/W and θJC =2.99°C/W,when ud pper trace and pad soldered directly to a JEDEC standard,four-layer,3in x 3in PCB.
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ABSOLUTE MAXIMUM RATINGS
RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
ADS5520
.......................................................................................................................................................
SBAS310F–MAY 2004–REVISED OCTOBER 2008
over operating free-air temperature range (unless otherwi noted)(1)
ADS5520
实践教育UNIT AV DD to A GND ,DRV DD to DR GND –0.3to 3.7V Supply Voltage
A GND to DR GND
±0.1
V Analog input to A GND (2)(3)–0.3to minimum (AVDD +0.3,3.6)
V Logic input to DR GND
–0.3to DRV DD V Digital data output to DR GND –0.3to DRV DD
V Operating temperature range –40to 85°C Junction temperature 105°C Storage temperature range –65to 150
°C
内禁卫(1)Stress above the ratings may cau permanent damage.Exposure to absolute maximum conditions for extended periods may degrade device reliability.The are stress ratings only,and functional operation of the device at the or any other conditions beyond tho specified is not implied.
(2)If the input signal can exceed 3.6V,then a resistor greater than or equal to 25Ωshould be added in ries with each of the analog
input pins to support input voltages up to 3.8V.For input voltages above 3.8V,the device can only handle transients and the duty cycle of the overshoot should be limited to less than 5%for inputs up to 3.9V.
(3)
The overshoot duty cycle can be defined as the ratio of the total time of overshoot to the total intended device lifetime,expresd as a percentage.The total time of overshoot is the integrated time of all overshoot occurrences over the lifetime of the device.
PARAMETER MIN
TYP
MAX
UNIT
Supplies
Analog supply voltage,AV DD
3 3.3 3.6V Output driver supply voltage,DRV DD 3
3.3
3.6
V
Analog input Differential input range
2.3V PP Input common-mode voltage,V CM (1) 1.45
1.55
1.65
V
Digital Output Maximum output load 10
pF
Clock Input
DLL ON 60125ADCLK input sample rate (sine wave)1/t C MSPS DLL OFF
280
Clock amplitude,sine wave,differential (2)1
3V PP
Clock duty cycle (3)
50%
Open free-air temperature range
ADS5520I
–40
85
女老师和学生°C
(1)Input common-mode should be connected to CM.(2)See Figure 49for more information.(3)See Figure 48for more information.
Typical values given at T A =25°C,min and max specified over the full recommended operating temperature range,AV DD =DRV DD =3.3V,sampling rate =125MSPS,50%clock duty cycle,DLL On,3-V PP differential clock,and –1dBFS differential input,unless otherwi noted
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ADS5520
SBAS310F–MAY2004– ELECTRICAL CHARACTERISTICS(continued)
Typical values given at T A=25°C,min and max specified over the full recommended operating temperature range,AV DD= DRV DD=3.3V,sampling rate=125MSPS,50%clock duty cycle,DLL On,3-V PP differential clock,and–1dBFS differential input,unless otherwi noted
PARAMETER CONDITIONS MIN TYP MAX UNIT
Clock Voltage overload recovery time4
cycles Internal Reference Voltages
Reference bottom voltage,V REFM0.95V Reference top voltage,V REFP 2.1V Reference error–4%±0.9%4%
1.55社区o2o
Common-mode voltage output,V CM V
±0.05 Dynamic DC Characteristics and Accuracy
No missing codes Tested
Differential nonlinearity error,DNL f IN=10MHz-0.5±0.250.5LSB Integral nonlinearity error,INL f IN=10MHz-1.5±0.8 1.5LSB Offt error–11±1.511mV Offt temperature coefficient0.01mV/°C
Δofft error/ΔAV DD from AV DD=3V to
DC power-supply rejection ratio,DC PSRR0.25mV/V
AV DD=3.6V
Gain error(1)–2±0.452%FS Gain temperature coefficient0.01Δ%/°C Dynamic AC Characteristics
25°C6870.2
侧腹肌锻炼方法f IN=10MHz
Full temp range6669.3
f IN=55MHz70.1
25°C6870.1 Signal-to-noi ratio.SNR f IN=70MHz dBFS
Full temp range6668.8
f IN=100MHz69.7
f IN=150MHz69.3
f IN=220MHz68.4
RMS idle channel noi Inputs tied to common-mode0.32LSB
25°C7985
f IN=10MHz
Full temp range7684
f IN=55MHz79
25°C7883 Spurious-free dynamic range,SFDR f IN=70MHz dBc
Full temp range7582
f IN=100MHz82
f IN=150MHz78
f IN=220MHz74
25°C7991
f IN=10MHz
Full temp range7686
f IN=55MHz84
25°C7887 Second-harmonic,HD2f IN=70MHz dBc
Full temp range7583
f IN=100MHz84
f IN=150MHz78
f IN=220MHz74
(1)Gain error is specified by design and characterization;it is not tested in production.
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DIGITAL CHARACTERISTICS ADS5520
SBAS310F–MAY2004–REVISED OCTOBER2008
ELECTRICAL CHARACTERISTICS(continued)
Typical values given at T A=25°C,min and max specified over the full recommended operating temperature range,AV DD= DRV DD=3.3V,sampling rate=125MSPS,50%clock duty cycle,DLL On,3-V PP differential clock,and–1dBFS differential input,unless otherwi noted
PARAMETER CONDITIONS MIN TYP MAX UNIT
25°C7989
f IN=10MHz
Full temp range7688
f IN=55MHz79
25°C7885 Third-harmonic,HD3f IN=70MHz dBc
Full temp range7582
f IN=100MHz82
f IN=150MHz80
f IN=220MHz78
f IN=10MHz25°C88
Worst-harmonic/spur(other than HD2and
dBc HD3)f
胆小怕事
IN
=70MHz25°C86
25°C67.569.8吕保民
f IN=10MHz
Full temp range65.569
f IN=55MHz69.5
25°C67.569.9 Signal-to-noi+distortion,SINAD f IN=70MHz dBFS
Full temp range65.568.6
f IN=100MHz69.5
f IN=150MHz68.5
f IN=220MHz66.7
25°C7885
f IN=10MHz
Full temp range7583
f IN=55MHz77
25°C7781 Total harmonic distortion,THD f IN=70MHz dBc
Full temp range7479.5
f IN=100MHz79
f IN=150MHz75
励志的文言文f IN=220MHz72
Effective number of bits,ENOB f IN=70MHz11.3Bits
f=10.1MHz,15.1MHz(-7dBFS each tone)95 Two-tone intermodulation distortion,IMD f=50.1MHz,55.1MHz(-7dBFS each tone)92dBFS
f=148.1MHz,153.1MHz(-7dBFS each tone)93.5 AC power supply rejection ratio,ACPSRR Supply noi frequency≤100MHz35dB Power Supply
Total supply current,ICC f IN=70MHz236260mA Analog supply current,IAVDD f IN=70MHz175190mA Output buffer supply current,IDRVDD f IN=70MHz6170mA
Analog only578627 Power dissipation mW
Output buffer power with10-pF load on digital
202231
output to ground
Standby power With Clocks running180250mW
Valid over full recommended operating temperature range,AV DD=DRV DD=3.3V,unless otherwi noted
PARAMETER CONDITIONS MIN TYP MAX UNIT Digital Inputs
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ADS5520
SBAS310F–MAY2004– DIGITAL CHARACTERISTICS(continued)
Valid over full recommended operating temperature range,AV DD=DRV DD=3.3V,unless otherwi noted
PARAMETER CONDITIONS MIN TYP MAX UNIT High-level input voltage,V IH 2.4V Low-level input voltage,V IL0.8V High-level input current,I IH10µA Low-level input current,I IL–10µA Input current for RESET–20µA Input capacitance4pF Digital Outputs
Low-level output voltage,V OL C LOAD=10pF0.30.4V High-level output voltage,V OH C LOAD=10pF 2.83V Output capacitance3pF
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