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参数资料
| 型号： | MAX198ACNI |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | Multirange, Single %V, 12-Bit DAS with 12-Bit Bus Interface |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDIP28 |
| 封装： | PLASTIC, DIP-28 |
| 文件页数： | 15/16页 |
| 文件大小： | 165K |
| 代理商： | MAX198ACNI |
Layout, Grounding, and Bypassing
Careful printed circuit board layout is essential for best
system performance. For best performance, use a
ground plane. To reduce crosstalk and noise injection,
keep analog and digital signals separate. Digital
ground lines can run between digital signal lines to
minimize interference. Connect analog grounds and
DGND in a star configuration to AGND. For noise-free
operation, ensure the ground return from AGND to the
supply ground is low impedance and as short as possi-
ble. Connect the logic grounds directly to the supply
ground. Bypass V
DD
with 0.1μF and 4.7μF capacitors
to AGND to minimize high- and low-frequency fluctua-
tions. If the supply is excessively noisy, connect a 5
resistor between the supply and V
DD
, as shown in
Figure 12.
M
Multirange, S ingle +5V, 12-Bit DAS
with 12-Bit Bus Interfac e
______________________________________________________________________________________
15
V
DD
GND
DGND
DGND
AGND
+5V
+5V
SUPPLY
R* = 5
DIGITAL
CIRCUITRY
4.7
μ
F
0.1
μ
F
** CONNECT AGND AND DGND WITH A GROUND PLANE OR A SHORT TRACE
MAX196
MAX198
**
Figure 12. Power-Supply Grounding Connection
_________________________________________________________Func tional Diagram
T/H
THREE-STATE, BIDIRECTIONAL
I/O INTERFACE
12
10k
12
8
CHARGE REDISTRIBUTION
12-BIT DAC
CLOCK
SIGNAL
CONDITIONING
BLOCK
&
OVERVOLTAGE
TOLERANT
MUX
CONTROL LOGIC
&
LATCHES
REF
REFADJ
+2.5V
REFERENCE
D0–D11
12-BIT DATA BUS
CH5
CH4
CH3
CH2
CH1
CH0
CLK
CS
WR
RD
INT
V
DD
AGND
DGND
MAX196
MAX198
A
=
1.638
COMP
SUCCESSIVE-
APPROXIMATION
REGISTER
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|---|---|
| MAX198ACWI | Multirange, Single %V, 12-Bit DAS with 12-Bit Bus Interface |
| MAX198AENI | Fixed-Point Digital Signal Processor 532-FCBGA |
| MAX198AEWI | Multirange, Single %V, 12-Bit DAS with 12-Bit Bus Interface |
| MAX198BEAI | Multirange, Single %V, 12-Bit DAS with 12-Bit Bus Interface |
| MAX196BCAI | Multirange, Single %V, 12-Bit DAS with 12-Bit Bus Interface |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX198ACNI+ | 功能描述:模数转换器 - ADC 12-Bit 8Ch 100ksps 4.18V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX198ACWI | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX198ACWI+ | 功能描述:模数转换器 - ADC 12-Bit 8Ch 100ksps 4.18V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX198ACWI+T | 功能描述:模数转换器 - ADC 12-Bit 8Ch 100ksps 4.18V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX198ACWI-T | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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