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參數(shù)資料
| 型號： | TLC1542MFKB |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | ADC |
| 英文描述： | 11-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, CQCC20 |
| 封裝： | CERAMIC, LCC-20 |
| 文件頁數(shù)： | 2/32頁 |
| 文件大?。?/td> | 770K |
| 代理商： | TLC1542MFKB |
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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
See Figure 6
240
ns
td(I/O-EOC)
Delay time, tenth I/O CLOCK
↓ to EOC↓
See Figure 7
70
240
ns
td(EOC-DATA)
Delay time, EOC
↑ to DATA OUT (MSB)
See Figure 8
100
ns
tPZH, tPZL
Enable time, CS
↓ to DATA OUT (MSB driven)
See Figure 3
1.3
s
tPHZ, tPLZ
Disable time, CS
↑ to DATA OUT (high impedance)
See Figure 3
150
ns
tr(EOC)
Rise time, EOC
See Figure 8
300
ns
tf(EOC)
Fall time, EOC
See Figure 7
300
ns
tr(DATA)
Rise time, data bus
See Figure 6
300
ns
tf(DATA)
Fall time, data bus
See Figure 6
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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