TC14433 Datasheet, PDF (3/20 Pages) TelCom Semiconductor, Inc – 3-1/2 DIGIT A/D CONVERTERS

TC14433/A
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings*
Supply Voltage (V_DD – V_EE) ................... -0.5V to +18V
Voltage on Any Pin:
Reference to V_EE .....................-0.5V to (V_DD + 0.5)
DC Current, Any Pin: ........................................ ±10mA
Power Dissipation (T_A ≤ 70°C):
Plastic PLCC ................................................. 1.0W
Plastic PDIP.................................................. 940W
SOIC ............................................................. 940W
CERDIP ....................................................... 1.45W
Operating Temperature Range ............... 0°C to +70°C
Storage Temperature Range .............. -65°C to +160°C
*Stresses above those listed under "Absolute Maximum
Ratings" may cause permanent damage to the device. These
are stress ratings only and functional operation of the device
at these or any other conditions above those indicated in the
operation sections of the specifications is not implied.
Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability.
TC14433/A ELECTRICAL SPECIFICATIONS
Electrical Characteristics: V_DD = +5V, V_EE = -5V, C₁ = 0.1µF, (Mylar), C₀ = 0.1µF, R_C = 300kΩ, R₁ = 470kΩ @ V_REF = 2V,
R₁ = 27kΩ @ V_REF = 200mV, unless otherwise specified.
Symbol
Parameter
Min
Typ
Max
Min
Typ Max Units Test Conditions
Analog Input
T_A = +25°C
T_A = +25°C
SYE Rollover Error (Positive) and -1
—
+1
—
—
— Counts 200mV Full Scale
Negative Full Scale
Symmetry
V_IN -V_IN = +V_IN
NL
Linearity Output Reading
-0.05
+0.05
+0.05
—
—
— %rdg V_REF = 2V
(Note 1)
-1 count
—
+1 count —
—
— %rdg V_REF = 200mV
SOR
Stability Output Reading
(Note 2)
—
—
2
—
—
—
LSD V_X = 1.99V,
V_REF = 2V
—
—
3
—
—
—
LSD V_X = 199mV,
V_REF = 200mV
ZOR Zero Output Reading
—
0
0
—
—
—
LSD V_X = 0V, V_REF = 2V
I_IN
Bias Current: Analog Input
—
±20
±100
—
—
—
pA
Reference Input ^—
±20
±100
—
—
—
pA
Analog Ground
—
±20
±100
—
—
—
pA
CMRR Common mode Rejection
—
65
—
—
—
—
dB V_X = 1.4V, V_REF = 2V,
F_OC = 32kHz
Note 1: Accuracy - The accuracy of the meter at full scale is the accuracy of the setting of the reference voltage. 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.
2: The LSD stability for 200mV scale is defined as the range that the LSD will occupy 95% of the time.
3: Pin numbers refer to 24-pin PDIP.
© 2002 Microchip Technology Inc.
DS21394B-page 3