參數(shù)資料
型號(hào)： MAX1415AEWE
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類(lèi)： ADC
英文描述： 16-Bit, Low-Power, 2-Channel, Sigma-Delta ADCs
中文描述： 2-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO16
封裝： 0.300 INCH, MS-013AA, SOIC-16
文件頁(yè)數(shù)： 23/36頁(yè)
文件大?。?/td> 669K
代理商： MAX1415AEWE
Internal Oscillator Mode
In internal oscillator mode (INTCLK = 1), set the CLK bit
in the clock register (Table 12) to 0 to operate at a clock
frequency of 1MHz, or set CLK to 1 for a frequency of
2.4576MHz. The CLKDIV bit is not used in this mode.
Internal-Clock Startup Time
The internal clock requires time to stabilize during
power-on reset. This startup time is dependent on the
internal-clock frequency (see the
Typical Operating
Characteristics
section). The typical startup time for the
internal oscillator is less than 35μs, while the external
oscillator startup time when using a crystal or resonator
is in the order of milliseconds.
External Oscillator
The oscillator requires time to stabilize when enabled.
Startup time for the oscillator depends on supply voltage,
temperature, load capacitances, and center frequency.
Depending on the load capacitance, a 1M
feedback
resistor across the crystal can reduce the startup time
(Figure 7). The MAX1415/MAX1416 were tested with an
ECS-24-32-1 (2.4576MHz crystal) and an ECS-49-20-1
(4.9152MHz crystal) (see the
Typical Operating Char-
acteristics
section). When the external oscillator is
enabled, the supply current is typically 67μA with a 3V
supply and 227μA with a 5V supply.
Serial Digital Interface
The MAX1415/MAX1416 interface is fully compatible with
SPI-, QSPI-, and MICROWIRE-standard serial interfaces.
The serial interface provides access to seven on-chip
registers. The registers are 8, 16, and 24 bits in size.
Drive
CS
low to transfer data in and out of the
MAX1415/MAX1416. Clock in data at DIN on the rising
edge of SCLK. Data at DOUT changes on the falling
edge of SCLK and is valid on the rising edge of SCLK.
DIN and DOUT are transferred MSB first. Drive
CS
high
to force DOUT high impedance and cause the
MAX1415/MAX1416 to ignore any signals on SCLK and
DIN. Connect
CS
low for 3-wire operation. Figures 8
and 9 show the timings for write and read operations,
respectively.
On-Chip Registers
The MAX1415/MAX1416 contain seven internal registers
(Figure 10), which are accessed by the serial interface.
These registers control the various functions of the device
and allow the results to be read. Table 7 lists the address,
power-on default value, and size of each register.
The first of these registers is the communications register.
The 8-bit communications register controls the acquisi-
tion-channel selection, whether the next data transfer is a
read or write operation, and which register is to be
accessed. The second register is the 8-bit setup register,
which controls calibration modes, gain setting,
unipolar/bipolar inputs, and buffered/unbuffered modes.
The third register is the 8-bit clock register, which sets the
digital filter characteristics and the clock control bits. The
fourth register is the 16-bit data register, which holds the
output result. The 24-bit offset and gain registers store the
calibration coefficients for the MAX1415/MAX1416. The 8-
bit test register is used for factory testing only.
M
16-Bit, Low-Power, 2-Channel,
Sigma-Delta ADCs
______________________________________________________________________________________
23
CRYSTAL OR
CERAMIC
RESONATOR
C
L
C
L
CLKIN
CLKOUT
OPTIONAL
1M
MAX1415
MAX1416
Figure 7. Using a Crystal or Ceramic Oscillator
CS
t
2
t
6
t
9
t
10
SCLK
MSB
LSB
DIN
Figure 8. Write Timing Diagram
t
2
t
4
t
5
t
3
t
8
t
6
t
7
t
1
SCLK
MSB
LSB
DOUT
CS
DRDY
Figure 9. Read Timing Diagram
相關(guān)PDF資料
PDF描述
MAX1415CNE 16-Bit, Low-Power, 2-Channel, Sigma-Delta ADCs
MAX1415CUE 16-Bit, Low-Power, 2-Channel, Sigma-Delta ADCs
MAX1415CWE 16-Bit, Low-Power, 2-Channel, Sigma-Delta ADCs
MAX1415ENE 16-Bit, Low-Power, 2-Channel, Sigma-Delta ADCs
MAX1415EUE 16-Bit, Low-Power, 2-Channel, Sigma-Delta ADCs
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1415AEWE+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 2Ch .5ksps 1.75V 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MAX1415AEWE+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit 2Ch .5ksps 1.75V 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MAX1415AEWE-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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MAX1415ENE 制造商:Maxim Integrated Products 功能描述:16-BIT, LOW-POWER, 2-CHANNEL, SIGMA-DELTA ADC - Rail/Tube
MAX1415EPE 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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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