參數(shù)資料
型號： TLC1543CDWG4
廠商： TEXAS INSTRUMENTS INC
元件分類： ADC
英文描述： 11-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
封裝： GREEN, PLASTIC, SOIC-20
文件頁數(shù)： 2/32頁
文件大小： 770K
代理商： TLC1543CDWG4
www.ti.com
SLAS052G – MARCH 1992 – REVISED JANUARY 2006
OPERATING CHARACTERISTICS (continued)
over recommended operating free-air temperature range, V
CC = Vref+ = 4.5 V to 5.5 V, I/O CLOCK frequency = 2.1 MHz
(unless otherwise noted)
TEST
MIN
TYP (1)
MAX
UNIT
CONDITIONS
TLC1542C, I, or Q
See (4)
±1
LSB
EZS
Zero-scale error, see (3)
TLC1543C, I, or Q
See (4)
±1
LSB
TLC1542M
See (4)
±1
LSB
TLC1542C, I, or Q
See (4)
±1
LSB
EFS
Full-scale error, see (3)
TLC1543C, I, or Q
See (4)
±1
LSB
TLC1542M
See (4)
±1
LSB
TLC1542C, I, or Q
±1
LSB
Total unadjusted error, see (5)
TLC1543C, I, or Q
±1
LSB
TLC1542M
±1
LSB
ADDRESS = 1011
512
Self-test output code, see Table 3 and (6)
ADDRESS = 1100
0
ADDRESS = 1101
1023
See timing
tconv
Conversion time
21
s
diagrams
21
See timing
+10 I/O
tc
Total cycle time (access, sample, and conversion)
s
diagrams and (7)
CLOCK
periods
See timing
I/O CLOCK
tacq
Channel acquisition time (sample)
6
diagrams and (7)
periods
tv
Valid time, DATA OUT remains valid after I/O CLOCK
↓ See Figure 6
10
ns
td(I/O-DATA)
Delay time, I/O CLOCK
↓ to DATA OUT valid
240
ns
td(I/O-EOC)
Delay time, tenth I/O CLOCK
↓ to EOC↓
70
240
ns
td(EOC-DATA)
Delay time, EOC
↑ to DATA OUT (MSB)
100
ns
tPZH, tPZL
Enable time, CS
↓ to DATA OUT (MSB driven)
1.3
s
tPHZ, tPLZ
Disable time, CS
↑ to DATA OUT (high impedance)
150
ns
tr(EOC)
Rise time, EOC
300
ns
tf(EOC)
Fall time, EOC
300
ns
tr(DATA)
Rise time, data bus
300
ns
tf(DATA)
Fall time, data bus
300
ns
Delay time, tenth I/O CLOCK
↓ to CS↓ to abort
td(I/O-CS)
9
s
conversion (see Note (8))
(3)
Zero-scale error is the difference between 0000000000 and the converted output for zero input voltage; full-scale error is the difference
between 1111111111 and the converted output for full-scale input voltage.
(4)
Analog input voltages greater than that applied to REF+ convert as all ones (1111111111), while input voltages less than that applied to
REF- convert as all zeros (0000000000). The device is functional with reference voltages down to 1 V (Vref+-Vref-); however, the
electrical specifications are no longer applicable.
(5)
Total unadjusted error comprises linearity, zero-scale, and full-scale errors.
(6)
Both the input address and the output codes are expressed in positive logic.
(7)
I/O CLOCK period = 1/(I/O CLOCK frequency) (see Figure 6)
(8)
Any transitions of CS are recognized as valid only if the level is maintained for a setup time plus two falling edges of the internal clock
(1.425
s) after the transition.
10
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