ELECTRICAL CHARACTERISTICS: +5V (Cont.)
At TA = –40°C to +85°C, +VDD = +5.0V, VREF = +5.0V, SCL Clock Frequency = 3.4MHz (High Speed Mode) unless otherwise noted.
ADS7823E
TYP
ADS7823EB
TYP
PARAMETER
CONDITIONS
MIN
MAX
MIN
MAX
UNITS
DIGITAL INPUT/OUTPUT
Logic Family
CMOS
ꢀ
Logic Levels: VIH
+VDD
–0.3
•
0.7
+VDD + 0.5
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
V
V
V
µA
µA
VIL
VOL
+VDD
•
0.3
At min 3mA Sink Current
VIH = +VDD +0.5
VIL = -0.3
0.4
10
Input Leakage: IIH
IIL
-10
ꢀ
Data Format
Straight
Binary
ꢀ
ꢀ
ADS7823 HARDWARE ADDRESS
10010
Binary
POWER SUPPLY REQUIREMENTS
Power Supply Voltage, +VDD
Quiescent Current
Specified Performance
High Speed Mode: SCL= 3.4MHz
Fast Mode: SCL= 400kHz
4.75
5
5.25
1.0
ꢀ
ꢀ
ꢀ
V
0.72
380
240
ꢀ
ꢀ
ꢀ
mA
µA
µA
Standard Mode, SCL=100kHz
Power Dissipation
High Speed Mode: SCL= 3.4MHz
Fast Mode: SCL= 400kHz
Standard Mode, SCL=100kHz
3.6
1.9
1.2
5.0
ꢀ
ꢀ
ꢀ
ꢀ
mW
mW
mW
Powerdown Mode
High Speed Mode: SCL= 3.4MHz
346
ꢀ
µA
w/Wrong Address Selected
Fast Mode: SCL= 400kHz
Standard Mode, SCL=100kHz
136
34
ꢀ
ꢀ
µA
µA
Full Powerdown
SCL Pulled HIGH, SDA Pulled HIGH
3
3000
85
ꢀ
ꢀ
ꢀ
nA
TEMPERATURE RANGE
Specified Performance
–40
ꢀ
°C
ꢀ Specifications same as ADS7823E.
NOTES: (1) LSB means Least Significant Bit. With VREF equal to 2.5V, 1LSB is 610µV. (2) THD measured out to the 9th-harmonic.
PIN DESCRIPTIONS
PIN CONFIGURATION
Top View
MSOP
PIN
1
NAME
VREF
AIN
DESCRIPTION
Reference Input, 2.5V Nominal
Analog Input.
2
VREF
AIN
1
2
3
4
8
7
6
5
+VDD
SCL
SDA
A1
3
A0
Slave Address Bit 0
Ground
4
GND
A1
ADS7823
A0
5
Slave Address Bit 1
Serial Data
GND
6
SDA
SCL
+VDD
7
Serial Clock
8
Power Supply, 3.3V Nominal
TIMING DIAGRAM
SDA
tBUF
tLOW
tR
tF
tHD; STA
tSP
SCL
tHD; STA
tSU; STA
tSU; STO
tHD; DAT
tHIGH
tSU; DAT
STOP START
REPEATED
START
ADS7823
SBAS180B
4
BB [ BURR-BROWN CORPORATION ]
