參數(shù)資料
型號(hào)： TLC0838C
廠商： Texas Instruments, Inc.
英文描述： 8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL
中文描述： 8位模擬數(shù)字轉(zhuǎn)換器與串行控制
文件頁(yè)數(shù)： 8/15頁(yè)
文件大?。?/td> 226K
代理商： TLC0838C
TLC0834C, TLC0834I, TLC0838C, TLC0838I
8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL
SLAS094C – MARCH 1995 – REVISED APRIL 1997
2–8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
analog and converter section
PARAMETER
TEST CONDITIONS
MIN
–0.05
to
VCC+0.05
TYP
MAX
UNIT
VIC
Common-mode input voltage
See Note 3
V
On channel
VI = 5 V
VI = 0
VI = 0
VI = 5 V
1
II( tdb )
II(stdby)
Standby input current (see Note 4)
Off channel
–1
μ
A
On channel
–1
Off channel
1
ri(REF)
Input resistance to REF
1.3
2.4
5.9
k
total device
PARAMETER
MIN
TYP
MAX
UNIT
ICC
All parameters are measured under open-loop conditions with zero common-mode input voltage.
All typical values are at VCC = 5 V, TA = 25
°
C.
NOTES:
3. When channel IN– is more positive than channel IN+, the digital output code is 0000 0000. Connected to each analog input are
two on-chip diodes that conduct forward current for analog input voltages one diode drop above VCC.Care must be taken during
testing at low VCC levels (4.5 V) because high-level analog input voltage (5 V) can, especially at high temperatures, cause the input
diode to conduct and cause errors for analog inputs that are near full scale. As long as the analog voltage does not exceed the supply
voltage by more than 50 mV, the output code is correct. To achieve an absolute 0- to 5-V input range requires a minimum VCC of
4.950 V for all variations of temperature and load.
4. Standby input currents go in or out of the on or off channels when the A/D converter is not performing conversion and the clock is
in a high or low steady-state condition.
Supply current
0.6
1.25
mA
operating characteristics, V
CC
= 5 V, f
clock
= 250 kHz, t
r
= t
f
= 20 ns, T
A
= 25
°
C
(unless otherwise noted)
PARAMETER
TEST CONDITIONS§
MIN
TYP
±
1/16
MAX
±
1/4
±
1
±
1/4
1500
UNIT
Supply-voltage variation error
VCC = 4.75 V to 5.25 V
Vref = 5 V,
Differential mode
LSB
Total unadjusted error (see Note 5)
TA = MIN to MAX
LSB
Common-mode error
±
1/16
LSB
td
tpd
Propagation delay time, output
data after CLK
↓
(see Note 6) (see Figure 2)
MSB-first data
CL= 100pF
CL = 100pF
ns
LSB-first data
600
tdis
Output disable time DO or SARS after CS
Output disable time, DO or SARS after CS
↑
(see Figure 3)
CL = 10 pF,
CL = 100 pF,
RL = 10 k
RL = 2 k
250
ns
500
tconv
Conversion time (multiplexer-addressing time not included)
8
clock
periods
§All parameters are measured under open-loop conditions with zero common-mode input voltage. For conditions shown as MIN or MAX, use the
appropriate value specified under recommended operating conditions.
NOTES:
5. Total unadjusted error includes offset, full-scale, linearity, and multiplexer errors.
6. The MSB-first data is output directly from the comparator and, therefore, requires additional delay to allow for comparator response
time.
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TLC0838CDWR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8-Bit 20 kSPS Serial Out RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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