Datasheet AD7898 (Analog Devices) - 5

AD7898 ABSOLUTE MAXIMUM RATINGS
*
PIN CONFIGURATION
(TA = 25°C unless otherwise noted) VDD to GND . –0.3 V to +7 V
REF IN 1 8 VDD
Analog Input Voltage to GND
V 2 AD7898 7 CS / CONVST
AD7898-10 . ± 17 V
IN TOP VIEW GND 3 6
AD7898-3 . ± 10 V
(Not to Scale) VDRIVE SCLK
Reference Input Voltage to GND . –0.3 V to V
4 5 SDATA
DD + 0.3 V Digital Input Voltage to GND . –0.3 V to VDD + 0.3 V Digital Output Voltage to GND . –0.3 V to VDD + 0.3 V Operating Temperature Range Commercial (A, B Versions) . –40°C to +85°C Storage Temperature Range . –65°C to +150°C
200
␮
A IOL
Junction Temperature . 150°C SOIC Package, Power Dissipation . 450 mW
TO
θ
OUTPUT 1.6V
JA Thermal Impedance . 170°C/W
C PIN L
Lead Temperature, Soldering
50pF
Vapor Phase (60 sec) . 215°C
200
␮
A I
Infrared (15 sec) . 220°C
OH
ESD AD7898-10 . 2.5 kV Figure 1. Load Circuit for Digital Output Timing AD7898-3 . 4 kV Specifications *Stresses above those listed under Absolute Maximum Ratings may cause perma- nent damage to the device. This is a stress rating; functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ORDERING GUIDE Model Temperature Range Linearity Error1 SNR Package Option2
AD7898AR-10 –40°C to +85°C ±1 LSB 71 dB R-8 AD7898AR-10REEL –40°C to +85°C ±1 LSB 71 dB R-8 AD7898AR-10REEL7 –40°C to +85°C ±1 LSB 71 dB R-8 AD7898ARZ-103 –40°C to +85°C ±1 LSB 71 dB R-8 AD7898ARZ-10REEL3 –40°C to +85°C ±1 LSB 71 dB R-8 AD7898ARZ-10REEL73 –40°C to +85°C ±1 LSB 71 dB R-8 AD7898AR-3 –40°C to +85°C ±1 LSB 71 dB R-8 AD7898AR-3REEL –40°C to +85°C ±1 LSB 71 dB R-8 AD7898AR-3REEL7 –40°C to +85°C ±1 LSB 71 dB R-8 EVAL-AD7898CB EVAL-CONTROL BRD24 NOTES 1Linearity Error refers to integral linearity error. 2R = SOIC. 3Z = Pb-Free part. 4This board is a complete unit allowing a PC to control and communicate with all Analog Devices evaluation boards ending in the CB designators.
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.
WARNING!
Although the AD7898 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high-energy electrostatic discharges. Therefore, proper ESD pre- cautions are recommended to avoid performance degradation or loss of functionality.
ESD SENSITIVE DEVICE
–4– REV. A Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ORDERING GUIDE PIN CONFIGURATION PIN FUNCTION DESCRIPTIONS TERMINOLOGY Signal to (Noise + Distortion) Ratio Total Harmonic Distortion Peak Harmonic or Spurious Noise Intermodulation Distortion Relative Accuracy Differential Nonlinearity Positive Full-Scale Error (AD7898-10) Positive Full-Scale Error (AD7898-3) Bipolar Zero Error (AD7898-10, AD7898-3) Negative Full-Scale Error (AD7898-10) Negative Full-Scale Error (AD7898-3) Track/Hold Acquisition Time PSR (Power Supply Rejection) PERFORMANCE CURVES Noise CONVERTER DETAILS CIRCUIT DESCRIPTION Analog Input Section Acquisition Time TYPICAL CONNECTION DIAGRAM VDRIVE Feature Track/Hold Section Reference Input SERIAL INTERFACE OPERATING MODES Mode 0 Operation Mode 1 Operation Mode Selection Power-Down Mode Power-Up Times MICROPROCESSOR/MICROCONTROLLER INTERFACE FOR MODE 0 OPERATION 8x51/L51 to AD7898 Interface 68HC11/L11 to AD7898 Interface ADSP-2103/ADSP-2105 to AD7898 Interface DSP56002/L002 to AD7898 Interface MICROPROCESSOR INTERFACING FOR MODE 1 TMS320C5x/C54x to AD7898 Interface AD7898 to ADSP-21xx Interface AD7898 to DSP56xxx Interface AD7898 to MC68HC16 Interface OUTLINE DIMENSIONS Revision History