Analog Microelectronics, Inc.
3-1/2 Digit A/D Converter - Low Power
With HOLD And Differential Reference Inputs
AME811/AME811A/AME811R
n Electrical Characteristics
o
Unless otherwise noted, AME811 is specified at TA = 25 C, fclock = 48KHz. Supply voltage = 9V (V+ to V-)
Parameter
Conditions
Vin = 0V
Full-Scale = 200.0mV
Vin = Vref = 100.0mV 999 999/1000 1000 Digital Reading
Min
-0
Typ
w 0
Max
Unit
+0 Digital Reading
Zero Input Reading
Ratiometric Reading
Roll-Over Error
(Difference in Reading for
Equal Positive and Negative
Reading Near Full-Scale)
Linearity (Max. Deviation
From Best Straight Line Fit)
Common-Mode
-Vin = +Vin ≈ 200.0mV -1
–0.2
+1
+1
Counts
Full-Scale = 200.0mV -1
–0.2
50
Counts
µV/V
µV
Vcm = –1V, Vin =0V
Full-Scale = 200.0mV
Vin = 0V
Full-Scale = 200.0mV
Vin = 0V
Vin = 0V, 0oC to 70oC
Rejection Ratio
Noise (Pk-Pk Value Not
Exceeded 95% of Time)
Leakage Current at Input
15
1
10
1
pA
µV/oC
Zero Reading Drift
0.2
Analog Common Voltage
(With respect to V+)
25KΩ Between
Common and V+
2.8
3
3.2
V
Temp. Coeff. of Analog
Common (With respect to V+) Common and V+
0oC m TA m 70oC
25KΩ Between
ppm/oC
50
75
Low Battery Flag
Test Pin Voltage
LCD Segment Drive Voltage V+ to V- = 9V
Backplane Drive Voltage V+ to V- = 9V
V+ to V-
With respect to V+
6.3
4
4
7.0
5
5
7.7
6
6
V
V
V
V
4
5
6
Notes: 1. Input voltage may exceed the supply voltages provided the input current is limited to ±100µA.
2. Dissipation rating assumes a device is mounted with all leads soldered to printed circuit board.
3
AME [ ANALOG MICROELECTRONICS ]
