參數資料
型號： MAX1068CCEG+
廠商： Maxim Integrated Products
文件頁數： 17/30頁
文件大?。?/td> 0K
描述： IC ADC 14BIT 200KSPS 24-QSOP
標準包裝： 50
位數： 14
采樣率（每秒）： 200k
數據接口： MICROWIRE?，QSPI?，串行，SPI?
轉換器數目： 1
功率耗散（最大）： 762mW
電壓電源： 模擬和數字
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 24-SSOP（0.154"，3.90mm 寬）
供應商設備封裝： 24-QSOP
包裝： 管件
輸入數目和類型： 8 個單端，單極
MAX1067/MAX1068
Multichannel, 14-Bit, 200ksps Analog-to-Digital
Converters
24
______________________________________________________________________________________
Distortion
Avoid degrading dynamic performance by choosing an
amplifier with distortion much less than the total harmonic
distortion of the MAX1067/MAX1068 at the frequencies of
interest (THD = -98db at 1kHz). If the chosen amplifier
has insufficient common-mode rejection, which results in
degraded THD performance, use the inverting configura-
tion (positive input grounded) to eliminate errors from this
source. Low-temperature-coefficient, gain-setting resis-
tors reduce linearity errors caused by resistance
changes due to self-heating. To reduce linearity errors
due to finite amplifier gain, use amplifier circuits with suf-
ficient loop gain at the frequencies of interest..
DC Accuracy
To improve DC accuracy, choose a buffer with an offset
much less than the MAX1067/MAX1068s’ offset (±10mV
max for +5V supply), or whose offset can be trimmed
while maintaining stability over the required tempera-
ture range.
Serial Interfaces
SPI and MICROWIRE Interfaces
When using the SPI (Figure 20a) or MICROWIRE (Figure
20b) interfaces, set CPOL = 0 and CPHA = 0. Drive CS
low to power on the MAX1067/MAX1068 before starting a
conversion (Figure 20c). Three consecutive 8-bit-wide
readings are necessary to obtain the entire 14-bit result
from the ADC. DOUT data transitions on the serial clock’s
falling edge. The first 8-bit-wide data stream contains all
leading zeros. The 2nd 8-bit-wide data stream contains
the MSB through D6. The 3rd 8-bit-wide data stream con-
tains D5 through D0 followed by S1 and S0.
CS
SCLK
DOUT
I/O
SCK
MISO
SPI
VDD
SS
MAX1067
MAX1068
Figure 20a. SPI Connections
MAX1067
MAX1068
CS
MICROWIRE
SCLK
DOUT
I/O
SK
SI
Figure 20b. MICROWIRE Connections
DOUT*
CS
SCLK
1ST BYTE READ
2ND BYTE READ
*WHEN CS IS HIGH, DOUT = HIGH-Z
MSB
HIGH-Z
3RD BYTE READ
LSB
S1
S0
D5
D4
D3
D2
D1
D0
24
20
16
12
8
6
4
1
D13
D12
D11
D10
D9
D8
D7
D6
D5
0
00
0
Figure 20c. SPI/MICROWIRE Interface Timing Sequence (CPOL = CPHA = 0)
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相關代理商/技術參數
參數描述
MAX1068CCEG+ 功能描述:模數轉換器 - ADC MultiCh 14-Bit 200ksps RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1068CCEG+T 功能描述:模數轉換器 - ADC MultiCh 14-Bit 200ksps RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1068CCEG-T 功能描述:模數轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1068CEEG 功能描述:模數轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1068CEEG+ 功能描述:模數轉換器 - ADC MultiCh 14-Bit 200ksps RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
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