參數(shù)資料
型號(hào)： TC3405VQR
廠商： Microchip Technology Inc.
英文描述： 16-Bit, Low Cost, Low Power Sigma-Delta A/D Converter
中文描述： 16位，低成本，低功耗Σ-ΔA / D轉(zhuǎn)換
文件頁數(shù)： 4/16頁
文件大小： 453K
代理商： TC3405VQR
TC3405
DS21414B-page 4
2002 Microchip Technology Inc.
TC3405 AC ELECTRICAL SPECIFICATIONS
SCLK, A0 A1, ENABLE
V
IL
Input Low Voltage
—
—
0.3 x
V
DD
—
—
V
V
IH
I
LEAK
Input High Voltage
Leakage Current
0.7 x V
DD
—
—
1
V
μ
A
SDAT, RESET
V
OL
V
OH
V
DD
MIN
Output Low Voltage
Output High Voltage (SDAT)
Minimum V
DD
for PFO, RESET Valid
—
—
—
1.1
0.4
—
1.3
V
V
μ
A
I
OL
= 1.5mA
I
SOURCE
= 400
μ
A
(Note 3)
0.9 x V
DD
—
V
TH
, PFI
V
CCPFI
PFI Input Voltage Range
V
TH
, PFI Input Current
Threshold (V
TH
, PFI)
Threshold Hysteresis
Threshold Tempco
Differential input voltage defined as (V
IN
+ – V
IN
-).
Resistance from INn+ to INn- or INn to GND.
@ V
DD
= 1.8V, I
SOURCE
≤
200
μ
A.
0
—
.01
1.23
30
30
V
DD
0.1
—
—
—
V
μ
A
V
mV
-0.1
—
—
—
V
THR
ppm/°C
Electrical Characteristics:
T
A
= 25°C and V
DD
= 2.7V, unless otherwise specified.
Boldface
type specifications apply for
temperatures of 0°C to 85°C. V
REF
= 1.25V, Internal Clock Frequency = 520kHz.
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
t
1
t
2
t
3
Resolution Reduction Clock Width
Resolution Reduction Clock Width
Conversion Time (15-bit Plus Sign)
Conversion Time (14-bit Plus Sign)
Conversion Time (13-bit Plus Sign)
Conversion Time (12-bit Plus Sign)
Conversion Time (11-bit Plus Sign)
Conversion Time (10-bit Plus Sign)
Conversion Time (9-bit Plus Sign)
Resolution Reduction Window
SCLK to Data Valid
Address Setup
Address Hold
Acknowledge Delay
RESET Active Time-out Period
1
1
—
—
—
—
—
—
—
—
—
—
125
t
3
/2.0
t
3
/4.0
t
3
/7.8
t
3
/15.1
t
3
/28.6
t
3
/51.4
t
3
/85.7
—
—
—
—
t
3
*2
—
—
—
—
—
—
—
—
—
—
—
—
—
μsec
μsec
msec
msec
msec
msec
msec
msec
msec
msec
nsec
nsec
nsec
nsec
msec
Width of SCLK (Negative)
Width of SCLK (Positive)
16-bit Conversion, T
A
= 25°C
(Note 1)
15-bit Conversion
14-bit Conversion
13-bit Conversion
12-bit Conversion
11-bit Conversion
10-bit Conversion
Width of SCLK
SCLK Falling Edge to SDAT Valid
Address Valid to SCLK
SCLK to Address Valid Hold
SCLK to SDAT Delay
Delay from POR or Brown-out
Recovery to RESET = V
OH
Delay V
TH
Falling at 10V/msec to
RESET Low
t
4
t
5
t
6
t
7
t
8
t
9
1000
0
1000
—
—
1000
—
t
11
RESET Delay
5
—
64
μsec
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:
T
A
= 25°C and V
DD
= 2.7V, unless otherwise specified.
Boldface
type specifications apply for
temperatures of 0°C to 85°C. V
REF
= 1.25V, Internal Clock Frequency = 520kHz.
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
Note
1:
2:
3:
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