TC9400_06 Datasheet, PDF (3/24 Pages) Microchip Technology – Voltage-to-Frequency/Frequency-to-Voltage Converters

1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings*
V_DD – V_SS ........................................................... +18V
I_IN ....................................................................... 10 mA
V_OUTMAX – V_OUT Common...................................... 23V
V_REF – V_SS ..........................................................-1.5V
Storage Temperature Range.............. -65°C to +150°C
Operating Temperature Range:
C Device ........................................... 0°C to +70°C
E Device......................................... -40°C to +85°C
Package Dissipation (T_A ≤ 70°C):
8-Pin CerDIP ............................................. 800 mW
8-Pin Plastic DIP ....................................... 730 mW
8-Pin SOIC ................................................ 470 mW
TC9400/9401/9402
*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.
TABLE 1-1: TC940X ELECTRICAL SPECIFICATIONS
Electrical Characteristics: V_DD = +5V, V_SS = -5V, V_GND = 0V, V_REF = -5V, R_BIAS = 100 kΩ, Full Scale = 10 kHz, unless otherwise
specified. T_A = +25°C, unless temperature range is specified (-40°C to +85°C for E device, 0°C to +70°C for C device).
Parameter
Min Typ Max Min Typ Max Min Typ Max Units
Test Conditions
Voltage-to-Frequency
Accuracy
TC9400
TC9401
TC9402
Linearity 10 kHz
— 0.01 0.05 — 0.004 0.01 — 0.05 0.25
Linearity 100 kHz — 0.1 0.25 — 0.04 0.08 — 0.25 0.5
Gain Temperature —
Drift (Note 1)
Gain Variance
—
±25 ±40 —
±10 — —
±25 ±40 —
±10 — —
±50 ±100
±10 —
Zero Offset
(Note 2)
— ±10 ±50 — ±10 ±50 — ±20 ±100
Zero Temperature —
Drift (Note 1)
±25 ±50 —
±25 ±50 —
±50 ±100
Note
1: Full temperature range; not tested.
2: I_IN = 0.
3: Full temperature range, I_OUT = 10 mA.
4: I_OUT = 10 μA.
5: Threshold Detect = 5V, Amp Out = 0V, full temperature range.
6: 10 Hz to 100 kHz; not tested.
7: 5μsec minimum positive pulse width and 0.5μsec minimum negative pulse width.
8: t_R = t_F = 20nsec.
9: R_L ≥ 2 kΩ, tested @ 10 kΩ.
10: Full temperature range, V_IN = -0.1V.
% Output Deviation from
Full Scale Straight Line Between
Normalized Zero and
Full Scale Input
% Output Deviation from
Full Scale Straight Line Between
Normalized Zero Read-
ing and Full Scale Input
ppm/°C Variation in Gain A due
Full Scale to Temperature Change
% of Variation from Ideal
Nominal Accuracy
mV Correction at Zero
Adjust for Zero Output
when Input is Zero
μV/°C
Variation in Zero Offset
Due to Temperature
Change
© 2006 Microchip Technology Inc.
DS21483C-page 3