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參數(shù)資料
| 型號： | TC3405VQRTR |
| 元件分類： | ADC |
| 英文描述： | 4-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO16 |
| 封裝： | QSOP-16 |
| 文件頁數(shù)： | 11/16頁 |
| 文件大?。?/td> | 453K |
| 代理商： | TC3405VQRTR |
TC3405
DS21414B-page 4
2002 Microchip Technology Inc.
TC3405 AC ELECTRICAL SPECIFICATIONS
SCLK, A0 A1, ENABLE
VIL
Input Low Voltage
—
0.3 x
VDD
V
VIH
Input High Voltage
0.7xVDD
——
V
ILEAK
Leakage Current
—
1
—
A
SDAT, RESET
VOL
Output Low Voltage
—
0.4
V
IOL =1.5mA
VOH
Output High Voltage (SDAT)
0.9 x VDD
——
V
ISOURCE =400A (Note 3)
VDDMIN
Minimum VDD for PFO, RESET Valid
—
1.1
1.3
A
VTH,PFI
VCCPFI
PFI Input Voltage Range
0
—
VDD
V
VTH, PFI Input Current
-0.1
.01
0.1
A
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
—
sec
Width of SCLK (Negative)
t2
Resolution Reduction Clock Width
1
—
sec
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 Time-out Period
—
t3*2
—
msec
Delay from POR or Brown-out
Recovery to RESET =VOH
t11
RESET Delay
5
—
64
sec
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
.
TC3405 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 ≤ 200A.
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