NTE2055 Datasheet, PDF (2/4 Pages) NTE Electronics – Integrated Circuit CMOS, 3 1/2 Digit A/D Converter

Electrical Characteristics: (C_I = 0.1µF mylar, R_I = 470kΩ @ V_ref = 2V, R_I = 27kΩ @ V_ref = 200mV,
R_C = 300kΩ, T_A = +25°C ; all voltages referenced to Analog GND, Pin1, unless
otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max Unit
Linearity–Output Reading
Stability – Output Reading
Symmetry – Output Reading
V_DD = 5V,
V_EE = –5V,
Note 2
V_ref = 2.000V
V_ref = 200.0mV
V_DD = 5V, V_EE = –5V, V_X = 199mV,
V_ref = 200mV
V_DD = 5V, V_EE = –5V, V_ref = 2000mV,
Note 3
–0.05
– Count
–
–
±0.05
±0.05
–
+0.05 %rdg
+ Count
– %rdg
3
LSD
–
–
4
LSD
Zero–Output Reading
Bias Current
Analog Input
Reference Input
V_DD = 5V, V_EE = –5V, V_X = 0V, V_ref = 2V
–
V_DD = 5V, V_EE = –5V
–
–
0
0
LSD
±20
±100
pA
±20
±100 pA
Analog GND
–
±20
±500 pA
Common Mode Rejection
Input Voltage (Pin9, Pin10)
“0” Level
“1” Level
Output Voltage (Pin14 to Pin23)
“0” Level
“1” Level
Output Current (Pin14 to Pin23)
Source
Sink
Input Current (DU, Pin9)
Quiescent Current
DC Supply Rejection
V_DD = 5V, V_EE = –5V, f_Clk = 32kHz,
V_X = 1.4V, V_ref = 2V
–
65
–
dB
V_IL
V_DD = 5V, V_O = 4.5V or 0.5V, Note 3
V_DD = 10V, V_O = 9V or 1V, Note 3
V_DD = 15V, V_O = 13.5V or 1.5V, Note 3
V_IH V_DD = 5V, V_O = 0.5V or 4.5V, Note 3
V_DD = 10V, V_O = 1V or 9V, Note 3
V_DD = 15V, V_O = 1.5V or 13.5V, Note 3
–
2.25
–
4.50
–
6.75
3.5
2.75
7.0
5.50
11.0
8.25
1.5
V
3.0
V
4.0
V
–
V
–
V
–
V
V_OL
V_OH
V_SS = 0V
V_SS = –5V
V_SS = 0V
V_SS = –5V
V_DD = 5V, V_EE = –5V
–
–
4.95
4.95
0
–5.0
–5.0
5.0
0.05
V
–4.95 V
–
V
–
V
I_OH
V_DD = 5V,
V_SS = 0V, V_OH = 4.6V
V_EE = –5V _{VSS = –5V, VOH = 4.5V}
–0.2
–0.5
–0.36
–0.9
–
mA
–
mA
I_OL
V_SS = 0V, V_OL = 0.4V
0.51
0.88
–
mA
V_SS = –5V, V_OL = –4.5V
1.3
2.25
–
mA
I_DU V_DD = 5V, V_EE = –5V
–
±0.00001 ±0.3
µA
I_Q
V_DD to V_EE, V_DD = 5V, V_EE = –5V
I_SS = 0
V_DD = 8V, V_EE = –8V
–
0.9
2.0
mA
–
1.8
4.0
mA
V_DD = 5V, V_EE = –5V, V_DD to V_EE, I_SS = 0,
–
0.5
– mV/V
V_ref = 2V
Note
Note
Note
2. Accuracy – The accuracy of the meter at full scale is the accuracy of the setting of the reference volt-
age. Zero is recalculated during each conversion cycle. The meaningful specification is linearity.
In other words, the deviation from correct reading for all inputs other than positive full scale and zero
is defined as the linearity specification.
3. Symmetry – Defined as the difference between a negative and positive reading of the same voltage
at or near full scale.
4. Referenced to V_SS for Pin9. Referenced to V_EE for Pin10.