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参数资料
| 型号： | MAX11639EEE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/22页 |
| 文件大小： | 0K |
| 描述： | IC ADC 8BIT SRL 300KSPS 16QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 位数： | 8 |
| 采样率（每秒）： | 300k |
| 数据接口： | MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 667mW |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-QSOP |
| 包装： | 管件 |
| 输入数目和类型： | 8 个单端，单极 |
MAX11638/MAX11639/MAX11642/MAX11643
8-Bit, 16-/8-Channel, 300ksps ADCs
with FIFO and Internal Reference
14
______________________________________________________________________________________
Conversion Register
Select active analog input channels per scan and scan
modes by writing to the conversion register. Table 2
details channel selection and the four scan modes.
Request a scan by writing to the conversion register
when in clock mode 10 or 11, or by applying a low
pulse to the CNVST pin when in clock mode 00 or 01.
A conversion is not performed if it is requested on a
channel that has been configured as CNVST. Do not
request conversions on channels 8–15 on the
MAX11638/MAX11639. Set CHSEL[3:0] to the lower
channel’s binary values.
Select scan mode 00 or 01 to return one result per sin-
gle-ended channel within the requested range. Select
scan mode 10 to scan a single input channel numerous
times, depending on NSCAN1 and NSCAN0 in the
averaging register (Table 4). Select scan mode 11 to
return only one result from a single channel.
Setup Register
Write a byte to the setup register to configure the clock,
reference, and power-down modes. Table 3 details the
bits in the setup register. Bits 5 and 4 (CKSEL1 and
CKSEL0) control the clock mode, acquisition and sam-
pling, and the conversion start. Bits 3 and 2 (REFSEL1
and REFSEL0) control internal or external reference use.
Averaging Register
Write to the averaging register to configure the ADC to
average up to 32 samples for each requested result,
and to independently control the number of results
requested for single-channel scans.
Table 2 details the four scan modes available in the
conversion register. All four scan modes allow averag-
ing as long as the AVGON bit, bit 4 in the averaging
register, is set to 1. Select scan mode 10 to scan the
same channel multiple times. Clock mode 11 disables
averaging.
Reset Register
Write to the reset register (as shown in Table 5) to clear
the FIFO or to reset all registers to their default states.
Set the RESET bit to 1 to reset the FIFO. Set the RESET
bit to zero to return the MAX11638/MAX11639/
MAX11642/MAX11643 to the default power-up state.
BIT
NAME
BIT
FUNCTION
—
7 (MSB) Set to 1 to select conversion register.
CHSEL3
6
Analog input channel select.
CHSEL2
5
Analog input channel select.
CHSEL1
4
Analog input channel select.
CHSEL0
3
Analog input channel select.
SCAN1
2
Scan mode select.
SCAN0
1
Scan mode select.
—
0 (LSB) Don’t care.
Table 2. Conversion Register*
*See below for bit details.
CHSEL3
CHSEL2
CHSEL1
CHSEL0
SELECTED
CHANNEL (N)
0
AIN0
0
1
AIN1
0
1
0
AIN2
0
1
AIN3
0
1
0
AIN4
0
1
0
1
AIN5
0
1
0
AIN6
0
1
AIN7
1
0
AIN8
1
0
1
AIN9
1
0
1
0
AIN10
1
0
1
AIN11
1
0
AIN12
1
0
1
AIN13
1
0
AIN14
1
AIN15
SCAN1 SCAN0
SCAN MODE (CHANNEL N IS
SELECTED BY BITS CHSEL3–CHSEL0)
0
Scans channels 0 through N.
01
Scans channels N through the highest
numbered channel.
10
Scans channel N repeatedly. The averaging
register sets the number of results.
1
No scan. Converts channel N once only.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX11639EEE+ | 功能描述:模数转换器 - ADC 8Ch 8-Bit 300ksps w/FIFO & Int Ref 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 |
| MAX11639EEE+T | 功能描述:模数转换器 - ADC 8Ch 8-Bit 300ksps w/FIFO & Int Ref 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 |
| MAX11642EEG+ | 功能描述:模数转换器 - ADC 16Ch 8-Bit 300ksps w/FIFO & Int Ref 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 |
| MAX11642EEG+T | 功能描述:模数转换器 - ADC 16Ch 8-Bit 300ksps w/FIFO & Int Ref 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 |
| MAX11643EEG+ | 功能描述:模数转换器 - ADC 16Ch 8-Bit 300ksps w/FIFO & Int Ref 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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