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參數(shù)資料
| 型號： | MAX1282BCUE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | ADC |
| 英文描述： | 300ksps/400ksps, Single-Supply, 4-Channel, Serial 12-Bit ADCs with Internal Reference |
| 中文描述： | 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16 |
| 封裝： | 4.40 MM, 0.65 MM PITCH, MO-153AC, TSSOP-16 |
| 文件頁數(shù)： | 14/24頁 |
| 文件大小： | 310K |
| 代理商： | MAX1282BCUE |
M
Once conversion is completed, the device goes into the
programmed power mode until a new control byte is
written.
The power-up delay is dependent on the power-down
state. Software low-power modes will be able to start
conversion immediately when running at decreased
clock rates (see
Power-Down Sequencing
). Upon
power-on reset, when exiting software full power-down
mode, or when exiting hardware shutdown, the device
goes immediately into full-power mode and is ready to
convert after 2μs when using an external reference.
When using the internal reference, wait for the typical
power-up delay from a full power-down (software or
hardware) as shown in Figure 8.
Software Power-Down
Software power-down is activated using bits PD1 and
PD0 of the control byte. When software power-down is
asserted, the ADC completes the conversion in
300ksps/400ksps, Single-Supply, 4-Channel,
Serial 12-Bit ADCs with Internal Reference
14
______________________________________________________________________________________
BIT
NAME
DESCRIPTION
7(MSB)
START
The first logic 1 bit after
CS
goes low defines the beginning of the control byte.
6
5
4
SEL2
SEL1
SEL0
These three bits select which of the eight channels are used for the conversion (Tables 1 and 2).
3
UNI/BIP
1 = unipolar, 0 = bipolar. Selects unipolar or bipolar conversion mode. In unipolar mode, an
analog input signal from 0 to V
REF
can be converted; in bipolar mode, the differential signal can
range from -V
REF
/2 to +V
REF
/2.
2
SGL/DIF
1 = single ended, 0 = pseudo-differential. Selects single-ended or pseudo-differential conver-
sions. In single-ended mode, input signal voltages are referred to COM. In pseudo-differential
mode, the voltage difference between two channels is measured (Tables 1 and 2).
1
0(LSB)
PD1
PD0
Select operating mode.
PD1
PD0
0
0
0
1
1
0
1
1
Mode
Full power-down
Fast power-down
Reduced power
Normal operation
Table 3. Control-Byte Format
BIT 7
BIT 6
(MSB)
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
(LSB)
START
SEL2
SEL1
SEL0
UNI/BIP
SGL/DIF
PD1
PD0
PD1/PD0
MODE
CONVERTING
(mA)
AFTER
CONVERSION
INPUT COMPARATOR
REFERENCE
00
Full Power-Down
(FULLPD)
2.5
2μA
Off
Off
01
Fast Power-Down
(FASTPD)
2.5
0.9mA
Reduced Power
On
10
Reduced-Power
Mode (REDP)
2.5
1.3mA
Reduced Power
On
11
Normal Operating
2.5
2.0mA
Full Power
On
CIRCUIT SECTIONS*
TOTAL SUPPLY CURRENT
Table 4. Software-Controlled Power Modes
*Circuit operation between conversions; during conversion all circuits are fully powered up.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1282BCUE+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 4Ch 400ksps 5.5V Precision ADC 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 |
| MAX1282BCUE+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 4Ch 400ksps 5.5V Precision ADC 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 |
| MAX1282BCUE-T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 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 |
| MAX1282BEUE | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 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 |
| MAX1282BEUE+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 4Ch 400ksps 5.5V Precision ADC 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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