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參數(shù)資料
| 型號： | TLC548C |
| 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 |
| 文件頁數(shù)： | 4/12頁 |
| 文件大?。?/td> | 167K |
| 代理商： | TLC548C |
TLC548C, TLC548I, TLC549C, TLC549I
8-BIT ANALOG-TO-DIGITAL CONVERTERS
WITH SERIAL CONTROL
SLAS067C – NOVEMBER 1983 – REVISED SEPTEMBER 1996
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
TLC548
NOM
TLC549
NOM
UNIT
MIN
MAX
MIN
MAX
Supply voltage, VCC
Positive reference voltage, Vref+ (see Note 3)
Negative reference voltage, Vref– (see Note 3)
Differential reference voltage, Vref+, Vref– (see Note 3)
Analog input voltage (see Note 3)
3
5
6
3
5
6
V
2.5
VCC
VCC+0.1
2.5
2.5
VCC
VCC+0.1
2.5
V
–0.1
0
–0.1
0
V
1
VCC
VCC+0.2
VCC
1
VCC
VCC+0.2
VCC
V
0
0
V
High-level control input voltage, VIH (for VCC = 4.75 V to 5.5 V)
Low-level control input voltage, VIL (for VCC = 4.75 V to 5.5 V)
Input/output clock frequency, fclock(I/O) (for VCC = 4.75 V to 5.5 V)
Input/output clock high, twH(I/O) (for VCC = 4.75 V to 5.5 V)
Input/output clock low, twL(I/O) (for VCC = 4.75 V to 5.5 V)
Input/output clock transition time, tt(I/O)
(for VCC = 4.75 V to 5.5 V) (see Note 4 and Operating Sequence)
Duration of CS input high state during conversion, twH(CS)
(for VCC = 4.75 V to 5.5 V) (see Operating Sequence)
Setup time, CS low before first I/O CLOCK, tsu(CS)
(for VCC = 4.75 V to 5.5 V) (see Note 5)
TLC548C, TLC549C
TLC548I, TLC549I
2
2
V
0.8
0.8
V
0
2.048
0
1.1
MHz
200
404
ns
200
404
ns
100
100
ns
17
17
μ
s
1.4
1.4
μ
s
0
70
85
0
70
85
°
C
–40
–40
NOTES:
3. Analog input voltages greater than that applied to REF+ convert to all ones (11111111), while input voltages less than that applied
to REF– convert to all zeros (00000000). For proper operation, the positive reference voltage Vref+, must be at least 1 V greater than
the negative reference voltage, Vref–. In addition, unadjusted errors may increase as the differential reference voltage, Vref+ – Vref–,
falls below 4.75 V.
4. This is the time required for the I/O CLOCK input signal to fall from VIH min to VIL max or to rise from VIL max to VIH min. In the vicinity
of normal room temperature, the devices function with input clock transition time as slow as 2
μ
s for remote data acquisition
applications in which the sensor and the ADC are placed several feet away from the controlling microprocessor.
5. To minimize errors caused by noise at the CS input, the internal circuitry waits for two rising edges and one falling edge of internal
system clock after CS
↓
before responding to control input signals. This CS setup time is given by the ten and tsu(CS) specifications.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLC548CD | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8bit A/D w/Serial 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 |
| TLC548CDG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8bit A/D w/Serial 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 |
| TLC548CDR | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8-Bit 45.5 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 |
| TLC548CDRG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8-Bit 45.5 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 |
| TLC548CP | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8bit A/D 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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