參數(shù)資料
型號(hào)： MAX1282BEUE
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： ADC
英文描述： 1.5C Accurate Digital Temperature Sensor with SPI Interface 6-SOT-23 -40 to 125
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(yè)數(shù)： 16/24頁(yè)
文件大小： 310K
代理商： MAX1282BEUE
M
Using Fast Power-Down
and Reduced-Power Modes
FASTPD and REDP modes achieve the lowest power
consumption at speeds close to the maximum sampling
rate. Figure 10 shows the MAX1283’s power
consumption in FASTPD mode (PD1 = 0, PD0 = 1),
REDP mode (PD1 = 1, PD0 = 0), and, for comparison,
normal operating mode (PD1 = 1, PD0 = 1). The figure
shows power consumption using the specified power-
down mode, with the internal reference and conversion
controlled at the maximum clock speed. The clock
speed in FASTPD or REDP should be limited to 4.8MHz
for the MAX1282/MAX1283. FULLPD mode may provide
increased power savings in applications where the
MAX1282/MAX1283 are inactive for long periods of time,
but intermittent bursts of high-speed conversions are
required. Figure 11b shows FASTPD and REDP timing.
Internal and External References
The MAX1282/MAX1283 can be used with an internal
or external reference voltage. An external reference
can be connected directly at REF or at the REFADJ pin.
An internal buffer is designed to provide 2.5V at
REF for the MAX1282/MAX1283. The internally trimmed
1.22V reference is buffered with a 2.05 gain.
Internal Reference
The MAX1282/MAX1283’s full-scale range with the inter-
nal reference is 2.5V with unipolar inputs and ±1.25V
with bipolar inputs. The internal reference voltage is
adjustable by ±100mV with the circuit in Figure 12.
External Reference
The MAX1282/MAX1283’s external reference can be
placed at the input (REFADJ) or the output (REF) of the
internal reference-buffer amplifier. The REFADJ input
impedance is typically 17k
. At REF, the DC input
resistance is a minimum of 18k
. During conversion, an
external reference at REF must deliver up to 350μA DC
load current and have 10
or less output impedance. If
the reference has a higher output impedance or is
noisy, bypass it close to the REF pin with a 4.7μF
capacitor.
300ksps/400ksps, Single-Supply, 4-Channel,
Serial 12-Bit ADCs with Internal Reference
16
______________________________________________________________________________________
SCLK
DIN
DOUT
SSTRB
t
CSS
t
CH
t
CSO
t
CL
t
DH
t
DOE
t
DS
t
STE
t
CSW
t
CP
t
CSH
t
CS1
t
STD
t
DOD
t
DOV
t
DOH
t
STV
t
STH
CS
#10
Figure 6. Detailed Serial-Interface Timing
UNIPOLAR MODE
BIPOLAR MODE
Full Scale
Zero Scale
Positive
Full Scale
Zero
Scale
Negative
Full Scale
Table 5. Full Scale and Zero Scale
V
REF
+ V
COM
V
REF
/ 2
+ V
COM
V
REF
/ 2
+ V
COM
V
COM
V
COM
相關(guān)PDF資料
PDF描述
MAX1283BEUE 300ksps/400ksps, Single-Supply, 4-Channel, Serial 12-Bit ADCs with Internal Reference
MAX1284 Enhanced Product 1.5 Degrees C Accurate Digital Temperature Sensor W/Spi Interface 6-SOT-23 -40 to 125
MAX1285BCSA 400ksps/300ksps, Single-Supply, Low-Power, Serial 12-Bit ADCs with Internal Reference
MAX1285BESA 400ksps/300ksps, Single-Supply, Low-Power, Serial 12-Bit ADCs with Internal Reference
MAX1284-MAX1285 Enhanced Product 1.5 Degrees C Accurate Digital Temperature Sensor W/Spi Interface 6-SOT-23 -40 to 125
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
MAX1282BEUE+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
MAX1282BEUE-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
MAX1282EVC16 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 MAX1282C16 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
MAX1282EVKIT 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 MAX1282 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
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