参数资料
型号: MAX11359AETL+T
厂商: Maxim Integrated Products
文件页数: 33/67页
文件大小: 0K
描述: IC DAS SYSTEM 16BIT 40-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: 数据采集系统(DAS)
分辨率(位): 16 b
采样率(每秒): 512
数据接口: MICROWIRE?,QSPI?,串行,SPI?
电压电源: 模拟和数字
电源电压: 1.8 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 40-WFQFN 裸露焊盘
供应商设备封装: 40-TQFN-EP(6x6)
包装: 带卷 (TR)
MAX11359A
16-Bit Data-Acquisition System with ADC, DAC,
UPIOs, RTC, Voltage Monitors, and Temp Sensor
39
Maxim Integrated
DACA_OP Register
Writing to the DACA_OP output register updates DACA
on the rising SCLK edge of the LSB data bit. The output
voltage can be calculated as follows:
VOUTA = VREF x N/210
where:
VREF is the reference voltage for the DAC.
N is the integer value of the DACA<9:0> output regis-
ter. The output buffer is in unity gain.
The DACA data is 10 bits long and right justified.
DAE: DACA enable bit. Set DAE = 1 to power up the
DACA and the DACA output buffer in the MAX11359A.
OP2E: OP2 power-enable bit. Set OP2E = 1 to power
up OP2 in the MAX11359A.
OP1E: OP1 power-enable bit. Set OP1E = 1 to power
up OP1 in the MAX11359A. This bit is mirrored in the
DACB_OP register.
DACA<9:0>: DACA data bits.
DACA_OP Register (Power-On State: 000X XX00 0000 0000)
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, 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 DAE/OP3E, OP2E, and
OP1E bits in the DACA_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.
MSB
DAE
DBE
OP1E
X
DACA9
DACA8
LSB
DACA7
DACA6
DACA5
DACA4
DACA3
DACA2
DACA1
DACA0
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
1.251
0
1
1.638
1.996
1
0
2.0
2.422
1
Table 10. Setting the Reference Output
Voltage
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