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參數(shù)資料
| 型號： | MAX1106CUB |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | ADC |
| 英文描述： | Single-Supply, Low-Power, Serial 8-Bit ADCs |
| 中文描述： | 1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO10 |
| 封裝： | UMAX-10 |
| 文件頁數(shù)： | 14/16頁 |
| 文件大?。?/td> | 205K |
| 代理商： | MAX1106CUB |
M
S ingle-S upply, Low-Power,
S erial 8-Bit ADCs
14
______________________________________________________________________________________
When operating at speeds below the maximum sam-
pling rate, the MAX1106/MAX1107’s power-down mode
can save considerable power by placing the converter
in a low-current shutdown state between conversions.
Pull
SHDN
low after the conversion byte has been read
to shut down the device completely.
CONVST should remain low most of the time and tog-
gled high for 1μs (100μs max) for the autozero adjust-
ment. An external reference is recommended for best
accuracy when using the shutdown feature. This
requires only 20μs for the internal biasing circuit to sta-
bilize before starting a new conversion. Alternatively,
the internal reference can be used, but additional time
is required for the reference to stabilize (when
bypassed by a 1μF capacitor; at data rates above
1ksps, the reference stabilizes within 1LSB in 200μs). If
the reference is completely discharged it requires
12ms to settle. No conversions should be performed
until the reference voltage has stabilized.
Internal or External V oltage Referenc e
An external reference between 1V and V
DD
should be
connected directly at the REFIN pin. To use the internal
reference, connect REFOUT directly to REFIN and
bypass REFOUT with a 1μF capacitor. The DC input
impedance at REFIN is extremely high, consisting of
leakage current only (typically 10nA). During a conver-
sion, the reference must be able to deliver up to 20μA
average load current and have an output impedance of
1k
or less at the conversion clock frequency. If the
reference has higher output impedance or is noisy,
bypass it close to the REFIN pin with a 0.1μF capacitor.
The internal reference is active as long as
SHDN
is high
and powers down when
SHDN
is low.
T ransfer Func tion
Figure 9 depicts the input/output transfer function.
Code transitions occur at integer LSB values. Output
coding is binary; with a 2.048V reference 1LSB = 8mV
(V
REFIN
/ 256). For single-ended operation connect IN-
to GND. Full-scale is achieved at V
IN+
= V
REFIN
- 1LSB.
For pseudo-differential operation the V
IN-
voltage range
is from GND to V
DD
, where full-scale is achieved at
V
IN+
= V
REFIN
+ V
IN-
- 1LSB. V
IN+
should not be higher
than V
DD
+ 50mV. Negative input voltages are invalid
and give a zero output code. Voltages greater than full-
scale give an all ones output code.
OUTPUT CODE
FULL-SCALE
TRANSITION
11111111
11111110
11111101
00000011
00000010
00000001
00000000
1
2
3
0
FS
FS - 1LSB
FS = V
REFIN
+ V
IN-
1LSB = V
REFIN
256
INPUT VOLTAGE (LSB)
(IN-)
Figure 9. Input/Output Transfer Function
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1106CUB+ | 功能描述:模數(shù)轉換器 - ADC Single-Supply Low-P Serial 8-Bit RoHS:否 制造商:Texas Instruments 通道數(shù)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 |
| MAX1106CUB+T | 功能描述:模數(shù)轉換器 - ADC Single-Supply Low-P Serial 8-Bit RoHS:否 制造商:Texas Instruments 通道數(shù)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 |
| MAX1106CUB-G07 | 制造商:Maxim Integrated Products 功能描述:+3V SINGLE-SUPPLY, LOW-POWER, SERIAL 8-BIT AD 10 PINS UMAX P - Bulk 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX1106CUBT | 制造商:Maxim Integrated Products 功能描述: |
| MAX1106CUB-T | 功能描述:模數(shù)轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)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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