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TC3400 Datasheet(PDF) 4 Page - Microchip Technology

No. de Pieza. TC3400
Descripción  1.8V, Low Power, 16-Bit Sigma-Delta A/D Converter
Descarga  16 Pages
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Fabricante  MICROCHIP [Microchip Technology]
Página de inicio  http://www.microchip.com
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TC3400 Datasheet(HTML) 4 Page - Microchip Technology

 
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TC3400
DS21409B-page 4
© 2002 Microchip Technology Inc.
TC3400 AC ELECTRICAL SPECIFICATIONS
SCLK
VIL
Input Low Voltage
0.3xVDD
V
VIH
Input High Voltage
0.7xVDD
——
V
ILEAK
Leakage Current
1
µA
SDAT
VOL
Output Low Voltage
0.4
V
IOL =1.5mA
VOH
Output High Voltage (SDAT)
0.9 x VDD
——
V
ISOURCE =400µA (Note 3)
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
t8
Acknowledge Delay
1000
nsec
SCLK to SDAT Delay
Note
1:
Nominal temperature drift is -2830ppm/C° for temperature less than 25°C and -1340ppm/°C for temperatures
greater than 25°C
.
TC3400 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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