Datasheet AD7660 (Analog Devices) - 5

AD7660 ABSOLUTE MAXIMUM RATINGS1 PIN CONFIGURATION
Analog Inputs IN2, REF, INGND, REFGND . .
ND
. AVDD + 0.3 V to AGND – 0.3 V
D N G F F
Ground Voltage Differences
G NC NC NC NC NC IN NC NC NC IN RE RE
AGND, DGND, OGND . ± 0.3 V
8 7 6 5 4 3 2 1 0 9 8 7 4 4 4 4 4 4 4 4 4 3 3 3
Supply Voltages AVDD, DVDD, OVDD . –0.3 V to +7 V
AGND 1 36 AGND
AVDD to DVDD,
AVDD 2 35 CNVST
AVDD to OVDD . ± 7 V
NC 3 34 PD
DVDD to OVDD . ± 7 V
DGND 4 33 RESET
Digital Inputs
OB/2C 5 32 CS AD7660
Except the Databus D(7:4) . –0.3 V to DVDD + 0.3 V
NC 6 31 RD NC TOP VIEW 7 30 DGND
Databus Inputs D(7:4) . –0.3 V to OVDD + 0.3 V
SER/PAR (Not to Scale) 8 29 BUSY
Internal Power Dissipation3 . 700 mW
D0 9 28 D15
Internal Power Dissipation4 . 2.5 W
D1 10 27 D14 D2 11 26 D13
Junction Temperature . 150∞C
D3 12 25 D12
Storage Temperature Range . –65∞C to +150∞C Lead Temperature Range
3 4 5 6 7 8 9 0 1 2 3 4 1 1 1 1 1 1 1 2 2 2 2 2
(Soldering 10 sec) . 300∞C
C K N D D K C R L UT /INT DI D DD ND O CL
NOTES
T S X OGN OV DV DG DO S /SYN RR
1
VSC
Stresses above those listed under Absolute Maximum Ratings may cause perma-
E VSYN S 0 DC/ 1 /IN D9/
nent damage to the device. This is a stress rating only; functional operation of the
/IN R D D4/ 5 6 D8/ RDE D 1/
device at these or any other conditions above those indicated in the operational
D D7/ 1 D
section of this specification is not implied. Exposure to absolute maximum rating
NOTES
conditions for extended periods may affect device reliability.
1. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN.
2 See Analog Input section.
2. THE EPAD IS CONNECTED TO GROUND; HOWEVER,
3 Specification is for device in free air: 48-Lead LQFP: qJA = 91∞C/W, qJC = 30∞C/W.
THIS CONNECTION IS NOT REQUIRED TO MEET
4 Specification is for device in free air: 48-Lead LFCSP: q
SPECIFIED PERFORMANCE.
JA = 26∞C/W.
1.6mA IOL TO OUTPUT 1.4V PIN CL 60pF* 2V 500 I A OH 0.8V t t DELAY DELAY *IN SERIAL INTERFACE MODES, THE SYNC, SCLK, AND SDOUT TIMINGS ARE DEFINED WITH A MAXIMUM LOAD 2V 2V C 0.8V 0.8V L OF 10pF; OTHERWISE, THE LOAD IS 60pF MAXIMUM.
Figure 1. Load Circuit for Digital Interface Timing Figure 2. Voltage Reference Levels for Timings
ORDERING GUIDE Model1 Temperature Range Package Description Package Option
AD7660ASTZ –40∞C to +85∞C 48-Lead LQFP ST-48 AD7660ASTZRL –40∞C to +85∞C 48-Lead LQFP ST-48 AD7660ACPZRL –40∞C to +85∞C 48-Lead LFCSP CP-48-4 NOTES 1Z = RoHS Compliant Part.
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although
WARNING!
the AD7660 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are
ESD SENSITIVE DEVICE
recommended to avoid performance degradation or loss of functionality. –4– REV. E Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDERING GUIDE PIN FUNCTION DESCRIPTIONS DEFINITION OF SPECIFICATIONS Integral Nonlinearity Error (INL) Differential Nonlinearity Error (DNL) Full-Scale Error Unipolar Zero Error Spurious-Free Dynamic Range (SFDR) Effective Number of Bits (ENOB) Total Harmonic Distortion (THD) Signal-to-Noise Ratio (SNR) Signal-to-(Noise + Distortion) Ratio (S/[N+D]) Aperture Delay Transient Response Overvoltage Recovery Typical Performance Characteristics CIRCUIT INFORMATION CONVERTER OPERATION Transfer Functions TYPICAL CONNECTION DIAGRAM Analog Input Driver Amplifier Choice Voltage Reference Input Power Supply POWER DISSIPATION VS. THROUGHPUT CONVERSION CONTROL DIGITAL INTERFACE PARALLEL INTERFACE SERIAL INTERFACE MASTER SERIAL INTERFACE Internal Clock SLAVE SERIAL INTERFACE External Clock External Discontinuous Clock Data Read after Conversion External Clock Data Read during Conversion MICROPROCESSOR INTERFACING SPI Interface (ADSP-219x) APPLICATION HINTS Bipolar and Wider Input Ranges Layout Evaluating the AD7660 Performance OUTLINE DIMENSIONS Revision History