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参数资料
| 型号： | MAX1308ECM+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 14/37页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT 8CH 4MSPS 48LQFP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,000 |
| 位数： | 12 |
| 采样率（每秒）： | 3.65M |
| 数据接口： | 并联 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 1.82W |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-LQFP |
| 供应商设备封装： | 48-LQFP（7x7） |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 8 个单端，单极 |
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MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–MAX1314
8-/4-/2-Channel, 12-Bit, Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
______________________________________________________________________________________
21
Applications Information
Digital Interface
The bidirectional parallel digital interface allows for setting
the 8-bit configuration register (see the
Configuration
Register section) and reading the 12-bit conversion
result. The interface includes the following control signals:
chip select (CS), read (RD), write (WR), end of conversion
(EOC), end of last conversion (EOLC), conversion start
(CONVST), shutdown (SHDN), channel shutdown
(CHSHDN), internal clock select (INTCLK/EXTCLK), and
external clock input (CLK). Figures 6, 7, 8, 9, Table 2, and
the
Timing Characteristics show the operation of the inter-
face. D0–D7 are bidirectional, and D8–D11 are output
only. D0–D11 go high impedance when RD = 1 or CS = 1.
Configuration Register
Enable channels as active by writing to the configura-
tion register through I/O lines D0–D7 (Table 2). The bits
in the configuration register map directly to the chan-
nels, with D0 controlling channel zero, and D7 control-
ling channel seven. Setting any bit high activates the
corresponding input channel, while resetting any bit
low deactivates the corresponding channel. On the
devices with less than eight channels, some of the bits
have no function (Table 2).
To write to the configuration register, pull CS and WR
low, load bits D0 through D7 onto the parallel bus, and
force WR high. The data are latched on the rising edge
of WR (Figure 6). Write to the configuration register at
any point during the conversion sequence. At power-
up, write to the configuration register to select the
active channels before beginning a conversion.
However, the new configuration does not take effect
until the next CONVST falling edge. At power-up all
channels default active. Shutdown does not change the
configuration register. The configuration register may
be written to in shutdown. See the
Channel Shutdown
(CHSHDN) section for information about using the con-
figuration register for power saving.
Table 2. Configuration Register
BIT/CHANNEL
PART
NUMBER
STATE
D0/CH0
D1/CH1
D2/CH2
D3/CH3
D4/CH4
D5/CH5
D6/CH6
D7/CH7
ON
1
111
11
MAX1304
MAX1308
MAX1312
OFF
0
000
00
ON
1
111X
X
MAX1305
MAX1309
MAX1313
OFF
0
000X
X
ON
1
XX
MAX1306
MAX1310
MAX1314
OFF
0
XX
X = Don’t care (must be 1 or 0).
D0–D7
DATA-IN
RD
CONVST
CONFIGURATION
REGISTER UPDATES
CS
WR
tCS
tWRL
tCTW
tDTW
tWTD
tWTC
Figure 6. Write Timing
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相关代理商/技术参数 |
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| MAX1308EVB16 | 功能描述:数据转换 IC 开发工具 MAX1308 Evaluation Kit/Evaluation System RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| MAX1308EVKIT | 功能描述:数据转换 IC 开发工具 MAX1308 Evaluation Kit/Evaluation System RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| MAX1309ECM | 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 |
| MAX1309ECM/V+ | 功能描述:模数转换器 - ADC 12-Bit 4Ch 1.075Msps 3V 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 |
| MAX1309ECM/V+T | 功能描述:模数转换器 - ADC 12-Bit 4Ch 1.075Msps 3V 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 |
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