Datasheet AD7091 (Analog Devices) - 8

AD7091 Data Sheet 75 550 TA = 25°C f f SAMPLE = 1MSPS SAMPLE = 1MSPS VDD = 2.7V 500 70 +125°C A) V µ DD = 3V 450 ( 65 VDD = 5V B) NT d +85°C 400 INAD ( CURRE S 60 Y L P 350 UP S +25°C 55 300 –40°C 50 250 1 10 100
010
2.25 2.50 2.75 3.00 3.25 3.50 3.75 4.00 4.25 4.50 4.75 5.00
013
INPUT FREQUENCY (kHz)
10494-
SUPPLY VOLTAGE (V)
10494- Figure 10. SINAD vs. Analog Input Frequency for Various Supply Voltages Figure 13. Operational Supply Current vs. Supply Voltage for Various Temperatures
60 6000 VDD = 3.3V VDD = 2.09V TA = 25°C VDD = 3V 51,436 65,536 SAMPLES VDD = 3.6V 50 5000 VDD = 5.25V k) ( S A) NCE 40 n 4000 ( NT 30 CCURRE 3000 O CURRE F Y L R O P 20 2000 BE UP S NUM 10 8108 1000 5992 0 0 0
1
0 2047 2048 2049 2050 2051
1 0
–40 25 85 125
014
CODE
10494-
TEMPERATURE (°C)
10494- Figure 11. Histogram of Codes at Code Center (VDD/2) Figure 14. Power-Down Supply Current vs. Temperature for Various Supply Voltages
7 6 +125°C 5 s) n +25°C 4 ( Y A L –40°C 3 DE t 2 2 1 VDD = 3V 010 20 30 40 50
012
SDO CAPACITANCE LOAD (pF)
10494- Figure 12. t2 Delay vs. SDO Capacitance Load, VDD = 3 V Rev. B | Page 8 of 20 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS TIMING SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS TERMINOLOGY THEORY OF OPERATION CIRCUIT INFORMATION CONVERTER OPERATION ADC TRANSFER FUNCTION TYPICAL CONNECTION DIAGRAM ANALOG INPUT MODES OF OPERATION Normal Mode Power-Down Mode POWER CONSUMPTION Power Consumption in Normal Mode Power Consumption Using a Combination of Normal Mode and Power-Down Mode MULTIPLEXER APPLICATIONS SERIAL INTERFACE BUSY INDICATOR ENABLED BUSY INDICATOR DISABLED SOFTWARE RESET INTERFACING WITH AN 8-/16-BIT SPI BUS OUTLINE DIMENSIONS ORDERING GUIDE