參數(shù)資料
型號： MAX1358BETL+W
廠商： Maxim Integrated Products
文件頁數(shù)： 37/71頁
文件大?。?/td> 0K
描述： DAS 16BIT DUAL 10:1 40-TQFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 50
類型： 數(shù)據(jù)采集系統(tǒng)（DAS）
分辨率（位）： 16 b
采樣率（每秒）： 21.94k
數(shù)據(jù)接口： MICROWIRE?，QSPI?，串行，SPI?
電壓電源： 模擬和數(shù)字
電源電壓： 1.8 V ~ 3.6 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 40-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 40-TQFN-EP（6x6）
包裝： 托盤
MAX1358B
16-Bit, Data-Acquisition System with ADC, DACs,
UPIOs, RTC, Voltage Monitors, and Temp Sensor
42
______________________________________________________________________________________
NOMINAL
THRESHOLD (mV)
TSEL2
TSEL1
TSEL0
00
X
50
100
1
0
1
150
1
0
200
1
Table 11. Setting the Signal-Detect
Comparator Threshold
X = Don’t care.
The REF_SDC register contains bits to control the refer-
ence voltage and signal-detect comparator.
REFV<1:0>: Reference buffer voltage gain and enable
bits. Enables the output buffer, and sets the gain and
the voltage at the REF pin as shown in Table 10. Power-
on state is off to enable an external reference to drive
the REF pin without contention.
AOFF: ADC and DAC/op-amp power-off bit. This bit pro-
vides a method for turning off several analog functions
with a single write. Setting AOFF = 1 deasserts the
ADCE in the ADC register and the DAE, DBE, and OP1E
bits in the DACA_OP and DACB_OP registers, powering
down these analog blocks. Setting AOFF = 0 has no
effect. The AON bit has priority when both AON and
AOFF bits are asserted.
Most of the analog functions can be disabled with a
single write to the REF_SDC register by using AOFF,
REFV<1:0>, and SDCE.
AON: ADC and DAC/op-amp power-on bit. This bit pro-
vides a method of turning on several analog functions
with a single write. Setting AON = 1 asserts the ADCE
bit in the ADC register and DAE, DBE, and OP1E bits in
the DACA_OP and DACB_OP register, powering up
these blocks. Setting AON = 0 has no effect. The AON
bit has priority when both AON and AOFF bits are
asserted.
Most of the analog functions can be enabled with a sin-
gle write to the REF_SDC register using AON,
REFV<1:0>, and SDCE.
SDCE: Signal-detect comparator power-enable bit. Set
SDCE = 1 to power up the signal-detect comparator,
and set SDCE = 0 to power down the signal-detect
comparator. The ADCE bit in the ADC register must be
set to 1 to use the signal-detect comparator.
TSEL<2:0>: Threshold-select bits. These bits select the
threshold for the signal-detect comparator as shown in
Table 11.
MSB
LSB
REFV1
REFV0
AOFF
AON
SDCE
TSEL2
TSEL1
TSEL0
REF_SDC Register (Power-On State: 0000 0000)
REFERENCE
BUFFER GAIN
(V/V)
REF OUTPUT
VOLTAGE (V)
REFV1
REFV0
Disabled
Off (High
Impedance
at REF)
00
1.0
1.25
0
1
1.638
2.048
1
0
2.0
2.5
1
Table 10. Setting the Reference Output
Voltage
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