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參數(shù)資料
| 型號： | MAX1280 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 400ksps/300ksps, Single-Supply, Low-Power, 8-Channel, Serial 12-Bit ADCs with Internal Reference |
| 中文描述： | 400ksps/300ksps、單電源、低功耗、8通道、串行12位ADC，內(nèi)置電壓基準(zhǔn) |
| 文件頁數(shù)： | 16/24頁 |
| 文件大小： | 363K |
| 代理商： | MAX1280 |
M
400ksps/300ksps, Single-Supply, Low-Power, 8-Channel,
Serial 12-Bit ADCs with Internal Reference
16
______________________________________________________________________________________
progress. In software power-down mode, the serial
interface remains active, waiting for a new control byte
to start conversion and switch to full-power mode.
Once the 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
). During
power-on reset, when exiting software full power-down
mode or exiting hardware shutdown, the device goes
immediately into full-power mode and is ready to con-
vert 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 hard-
ware), as shown in Figure 9.
Software Power-Down
Software power-down is activated using bits PD1 and
PD0 of the control byte. When software shutdown is
asserted, the ADC completes the conversion in
progress and powers down into the specified low-
quiescent-current state (2μA, 0.9mA, or 1.3mA).
The first logic 1 on DIN is interpreted as a start bit and
puts the MAX1280/MAX1281 into their full-power mode.
Following the start bit, the data input word or control
byte also determines the next power-down state. For
example, if the DIN word contains PD1 = 0 and PD0 =
1, a 0.9mA power-down starts after the conversion.
1
12
B11
B6
B0
B11
B6
B0
B11
B6
16
8
1
12
16
8
5
1
12
16
8
5
1
S
ETC
S
CONTROL BYTE 2
S
CONTROL BYTE 1
S
DIN
SCLK
DOUT
SSTRB
CS
CONTROL BYTE 0
CONVERSION RESULT 0
CONVERSION RESULT 1
5
HIGH-Z
HIGH-Z
Figure 8. Continuous 16-Clock/Conversion Timing
PD1/PD0
MODE
CONVERTING
AFTER
CONVERSION
INPUT COMPARATOR
REFERENCE
00
Full Power-Down
(FULLPD)
2.5mA
2μA
Off
Off
01
Fast Power-Down
(FASTPD)
2.5mA
0.9mA
Reduced Power
On
10
Reduced-Power
Mode (REDPD)
2.5mA
1.3mA
Reduced Power
On
11
Operating Mode
2.5mA
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.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1280EVC16 | MAX1280 Evaluation System |
| MAX1280EVKIT | MAX1280 Evaluation System |
| MAX1281 | 400ksps/300ksps, Single-Supply, Low-Power, 8-Channel, Serial 12-Bit ADCs with Internal Reference |
| MAX1280BEUP | 400ksps/300ksps, Single-Supply, Low-Power, 8-Channel, Serial 12-Bit ADCs with Internal Reference |
| MAX1281BCUP | 400ksps/300ksps, Single-Supply, Low-Power, 8-Channel, Serial 12-Bit ADCs with Internal Reference |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1280BCUP | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Integrated Circuits (ICs) 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 |
| MAX1280BCUP+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8Ch 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 |
| MAX1280BCUP+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8Ch 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 |
| MAX1280BCUP-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 |
| MAX1280BEUP | 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 |
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