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TC3403 Datasheet(PDF) 4 Page - Microchip Technology

Part No. TC3403
Description  1.8V Low Power, Quad Input, 16-Bit Sigma-Delta A/D Converter with a Power Fault Monitor and Microprocessor Reset Circuit
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Maker  MICROCHIP [Microchip Technology]
Homepage  http://www.microchip.com
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TC3403 Datasheet(HTML) 4 Page - Microchip Technology

 
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TC3403
DS21412C-page 4
© 2005 Microchip Technology Inc.
TC3403 AC ELECTRICAL SPECIFICATIONS
SCLK, A0, A1, ENABLE
VIL
Input Low Voltage
0.3 x VDD
V
VIH
Input High Voltage
0.7 x VDD
——
V
ILEAK
Leakage Current
1
μA
SDAT, RESET, PFO
VOL
Output Low Voltage
0.4
V
IOL = 1.5mA
VOH
Output High Voltage (SDAT)
0.9 x VDD
——
V
ISOURCE = 400μA (Note 3)
VDDMIN
Minimum VDD for PFO, RESET Valid
1.1
1.3
μA
VTH, PFI
VCCPFI
PFI Input Voltage Range
0
VDD
V
VTH, PFI Input Current
-0.1
.01
0.1
μA
VTHR
Threshold (VTH, PFI)
1.23
V
Threshold Hysteresis
30
mV
Threshold Tempco
30
ppm/°C
Electrical Characteristics: TA = 25°C and VDD = 2.7V, unless otherwise specified. Boldface type specifications apply for
temperatures of 0°C to 85°C. VREF = 1.25V, Internal Clock Frequency = 520kHz.
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
t1
Resolution Reduction Clock Width
1
µsec
Width of SCLK (Negative)
t2
Resolution Reduction Clock Width
1
µsec
Width of SCLK (Positive)
t3
Conversion Time (15-bit Plus Sign)
125
msec
16-bit Conversion, TA = 25°C (Note 1)
Conversion Time (14-bit Plus Sign)
t3/2.0
msec
15-bit Conversion
Conversion Time (13-bit Plus Sign)
t3/4.0
msec
14-bit Conversion
Conversion Time (12-bit Plus Sign)
t3/7.8
msec
13-bit Conversion
Conversion Time (11-bit Plus Sign)
t3/15.1
msec
12-bit Conversion
Conversion Time (10-bit Plus Sign)
t3/28.6
msec
11-bit Conversion
Conversion Time (9-bit Plus Sign)
t3/51.4
msec
10-bit Conversion
t4
Resolution Reduction Window
t3/85.7
msec
Width of SCLK
t5
SCLK to Data Valid
1000
nsec
SCLK Falling Edge to SDAT Valid
t6
Address Setup
0
nsec
Address Valid to SCLK
t7
Address Hold
1000
nsec
SCLK to Address Valid Hold
t8
Acknowledge Delay
1000
nsec
SCLK to SDAT Delay
t9
RESET Active Timeout Period
t3*2
msec
Delay from POR or Brown-out
Recovery to RESET = VOH
t10
PFO Delay
25
µsec
PFI to PFO Delay
t11
RESET Delay
5
64
µsec
Delay VTH Falling at 10V/msec to
RESET Low
Note
1:
Nominal temperature drift is -2830ppm/C° for temperature less than 25°C and -1340ppm/°C for temperatures
greater than 25°C
.
TC3403 DC ELECTRICAL SPECIFICATIONS (CONTINUED)
Electrical Characteristics: TA = 25°C and VDD = 2.7V, unless otherwise specified. Boldface type specifications apply for
temperatures of 0°C to 85°C. VREF = 1.25V, Internal Clock Frequency = 520kHz.
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
Note
1:
Differential input voltage defined as (VIN+ – VIN-).
2: Resistance from INn+ to INn- or INn to GND.
3: @ VDD = 1.8V, ISOURCE ≤ 200μA.


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