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参数资料
| 型号： | TC3405VQRRT |
| 元件分类： | ADC |
| 英文描述： | 4-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO16 |
| 封装： | QSOP-16 |
| 文件页数： | 6/12页 |
| 文件大小： | 68K |
| 代理商： | TC3405VQRRT |
3
TC3405
TC3405-1 12/7/99
16-Bit Low Cost, Low Power
∑ – A/D Converter
DC ELECTRICAL CHARACTERISTICS: TA = 25°C and VDD = 2.7V, unless otherwise specified.Specifications
in Bold type apply over a temperature range of 0
°C to 85°C. VREF = 1.25V, Internal Clock Freq.= 520kHz
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
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
—
A
SDAT, RESET
VOL
Output Low Voltage
IOL = 1.5 mA
—
0.4
V
VOH
Output High Voltage(SDAT Only)
ISOURCE = 400A(Note 2)
0.9 x VDD
——
V
VDD(MIN)
Minimum VDD for RESET Valid
—
1.1
1.3
V
VTH
VTHR
Threshold
—
1.23
—
V
Threshold Hysteresis
—
30
—
mV
Threshold Tempco
—
30
—
ppm/
°C
Input Current
-0.1
.01
0.1
A
AC ELECTRICAL CHARACTERISTICS: TA = 25°C and VDD = 2.7V, unless otherwise specified. Specifica-
tions in Bold type apply over a temperature range of 0
°C to 85°C. VREF = 1.25V, Internal Clock Freq.= 520kHz
Symbol
Parameter
Description
Min
Typ
Max
Unit
t1
Width of SCLK (Negative)
1
—
sec
t2
Resolution Reduction Clock Width
Width of SCLK (Positive)
1
—
sec
t3
Conversion Time (15-Bit Plus Sign)
16-bit conversion, TA = 25°C(Note 1)
—
125
—
msec
Conversion Time (14-Bit Plus Sign)
15-bit conversion
—
t3/2.0
—
msec
Conversion Time (13-Bit Plus Sign)
14-bit conversion
—
t3/4.0
—
msec
Conversion Time (12-Bit Plus Sign)
13-bit conversion
—
t3/7.8
—
msec
Conversion Time (11-Bit Plus Sign)
12-bit conversion
—
t3/15.1
—
msec
Conversion Time (10-Bit Plus Sign)
11-bit conversion
—
t3/28.6
—
msec
Conversion Time (9-Bit Plus Sign)
10-Bit conversion
—
t3/51.4
—
msec
t4
Resolution Reduction Window
Width of SCLK
—
t3/85.7
—
msec
t5
SCLK to Data Valid
SCLK falling edge to SDAT valid
1000
—
nsec
t6
Address Setup
Address valid to SCLK
0
—
nsec
t7
Address Hold
SCLK to address valid hold
1000
—
nsec
t8
Acknowledge Delay
SCLK to SDAT delay
—
1000
nsec
t9
RESET Active
Delay from POR or brown-out recovery
—
t3*2
—
msec
Timeout Period
to RESET = VOH
t11
RESET Delay
Delay for VTH falling at 10 V/msec
5
—
64
sec
to RESET low
Notes:
1. Nominal temperature drift is -2830 ppm/
°C for temperature less than 25°C and -1340 ppm/°C for temperature greater than 25°C.
2. At VDD= 1.8V, ISOURCE
200
a
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