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| 型号： | MAX11644EUA+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 18/22页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT I2C/SRL 1CH 8UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 位数： | 12 |
| 采样率（每秒）： | 94.4k |
| 数据接口： | I²C，串行 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 362mW |
| 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： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-uMAX |
| 包装： | 管件 |
| 输入数目和类型： | 2 个单端，单极；2 个单端，双极；1 个差分，单极；1 个差分，双极 |
MAX11644/MAX11645
Low-Power, 1-/2-Channel, I2C, 12-Bit ADCs
in Ultra-Tiny 1.9mm x 2.2mm Package
_______________________________________________________________________________________
5
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Rise Time of SCL Signal After
Acknowledge Bit
tRCL1
Measured from 0.3VDD - 0.7VDD
20
160
ns
Fall Time of SCL Signal
tFCL
Measured from 0.3VDD - 0.7VDD
20
80
ns
Rise Time of SDA Signal
tRDA
Measured from 0.3VDD - 0.7VDD
20
160
ns
Fall Time of SDA Signal
tFDA
Measured from 0.3VDD - 0.7VDD (Note 12)
20
160
ns
Setup Time for STOP Condition
tSU, STO
160
ns
Capacitive Load for Each Bus Line
CB
400
pF
Pulse Width of Spike Suppressed
tSP
(Notes 11 and 14)
0
10
ns
TIMING CHARACTERISTICS (Figure 1) (continued)
(VDD = 2.7V to 3.6V (MAX11645), VDD = 4.5V to 5.5V (MAX11644), VREF = 2.048V (MAX11645), VREF = 4.096V (MAX11644),
fSCL = 1.7MHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C, see Tables 1–5 for programming
notation.) (Note 1)
Note 1:
All WLP devices are 100% production tested at TA = +25°C. Specifications over temperature limits are guaranteed by
design and characterization.
Note 2:
For DC accuracy, the MAX11644 is tested at VDD = 5V and the MAX11645 is tested at VDD = 3V with an external
reference for both ADCs. All devices are configured for unipolar, single-ended inputs.
Note 3:
Relative accuracy is the deviation of the analog value at any code from its theoretical value after the full-scale range and
offsets have been calibrated.
Note 4:
Offset nulled.
Note 5:
Conversion time is defined as the number of clock cycles needed for conversion multiplied by the clock period.
Conversion time does not include acquisition time. SCL is the conversion clock in the external clock mode.
Note 6:
A filter on the SDA and SCL inputs suppresses noise spikes and delays the sampling instant.
Note 7:
The absolute input voltage range for the analog inputs (AIN0/AIN1) is from GND to VDD.
Note 8:
When the internal reference is configured to be available at REF (SEL[2:1] = 11), decouple REF to GND with a
0.1μF capacitor and a 2k
Ω series resistor (see the Typical Operating Circuit).
Note 9:
ADC performance is limited by the converter’s noise floor, typically 300μVP-P.
Note 10: Measured for the MAX11645 as:
and for the MAX11644, where N is the number of bits:
Note 11: A master device must provide a data hold time for SDA (referred to VIL of SCL) to bridge the undefined region of SCL’s
falling edge (see Figure 1).
Note 12: The minimum value is specified at TA = +25°C.
Note 13: CB = total capacitance of one bus line in pF.
Note 14: fSCL must meet the minimum clock low time plus the rise/fall times.
VV
V
FS
N
REF
(.
)
( .
)
(.
55
45
2
55
×
45
.)
V
VV
V
FS
N
REF
(.
)
( .
)
(.
36
27
2
36
×
27
.)
V
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX11644EUA+ | 功能描述:模数转换器 - ADC 12-Bit 2Ch 94.4ksps 5.5V 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 |
| MAX11644EUA+T | 功能描述:模数转换器 - ADC 12-Bit 2Ch 94.4ksps 5.5V 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 |
| MAX11645EUA+ | 功能描述:模数转换器 - ADC 12-Bit 2Ch 94.4ksps 3.6V 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 |
| MAX11645EUA+T | 功能描述:模数转换器 - ADC 12-Bit 2Ch 94.4ksps 3.6V 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 |
| MAX11645EWC+ | 制造商:Maxim Integrated Products 功能描述: |
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