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參數資料
| 型號： | TLV1548QDBRG4Q1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | ADC |
| 英文描述： | 8-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20 |
| 封裝： | GREEN, PLASTIC, SSOP-20 |
| 文件頁數： | 8/34頁 |
| 文件大?。?/td> | 532K |
| 代理商： | TLV1548QDBRG4Q1 |
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TLV1548Q1
LOW VOLTAGE 10BIT ANALOGTODIGITAL CONVERTER
WITH SERIAL CONTROL AND 8 ANALOG INPUTS
SGLS172B JUNE 2003 REVISED APRIL 2008
16
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
operating characteristics over recommended operating free-air temperature range,
VCC = Vref+ = 2.7 V to 5.5 V, I/O CLK frequency = 2.2 MHz (unless otherwise noted)
PARAMETER
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
EL
Linearity error (see Note 6)
±0.5
±1
LSB
ED
Differential linearity error
See Note 2
±0.5
±1
LSB
EO
Offset error (see Note 7)
See Note 2
±1.5
LSB
EG
Gain error (see Note 7)
See Note 2
±1
LSB
ET
Total unadjusted error (see Note 8)
±1.75
LSB
DATA IN = 1011
512
Self-test output code (see Table 3 and Note 9)
DATA IN - 1100
0
Self-test output code (see Table 3 and Note 9)
DATA IN = 1101
1023
tconv
Conversion time
Fast conversion speed
See Figures 16
7
10
s
tconv
Conversion time
Slow conversion speed
See Figures 16
through 19
15
25
s
tc
Total cycle time (access,
sample, conversion and EOC
↑
Fast conversion speed
See Figures 15
through 19 and
Notes 10, 11, 12
10.1 +
10 I/O CLK
s
tc
sample, conversion and EOC
↑
to CS
↓ delay)
Slow conversion speed
See Figures 15
through 19 and
Notes 10 and 12
40.1 +
10 I/O CLK
s
tacq
Channel acquisition time (sample)
See Figures 15
through 18 and
Note 10
6
I/O CLK
periods
tv
Valid time, DATA OUT remains valid after I/O CLK
↓
See Figure 11
20
ns
td1(FS)
Delay time, I/O CLK high to FS high
See Figure 14
5
30
50
ns
td2(FS)
Delay time, I/O CLK high to FS low
See Figure 14
10
30
60
ns
td(EOC↑ CS↓) Delay time, EOC↑ to CS low
See Figure 15
and Note 5
100
ns
td(CS↓ FS↑)
Delay time, CS
↓ to FS↑
See Figures 12
and 18
1
7
I/O CLK
periods
td(I/O -CS)
Delay time, 10th I/O CLK low to CS low to abort
conversion (see Note 13)
See Figure 10
1.1
s
All typical values are at TA = 25°C.
NOTES:
2. 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 down to 1 V (Vref+ Vref 1); however, the
electrical specifications are no longer applicable.
5. For all operating modes.
6. Linearity error is the maximum deviation from the best straight line through the A/D transfer characteristics.
7. Zero 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.
8. Total unadjusted error comprises linearity, zero-scale, and full-scale errors.
9. Both the input data and the output codes are expressed in positive logic.
10. I/O CLK period = 1 /(I/O CLK frequency) (see Figure 8).
11. For 3.3 V to 5.5 V only
12. For microprocessor mode
13. Any transitions of CS are recognized as valid only when the level is maintained for a setup time after the transition.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TLV1548QDBRQ1 | 功能描述:模數轉換器 - ADC 10B Analog/Digital Converter RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| TLV1549 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL |
| TLV1549C | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL |
| TLV1549CD | 功能描述:模數轉換器 - ADC 3.3V 10bit A/D RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| TLV1549CDG4 | 功能描述:模數轉換器 - ADC 10-Bit 38 kSPS Serial Out RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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