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参数资料
| 型号： | MAX1036LEKA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 11/23页 |
| 文件大小： | 0K |
| 描述： | IC ADC 8BIT LP SERIAL SOT23-8 |
| 标准包装： | 2,500 |
| 位数： | 8 |
| 采样率（每秒）： | 188k |
| 数据接口： | I²C，串行 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 1.75mW |
| 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： | SOT-23-8 |
| 供应商设备封装： | SOT-23-8 |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 4 个单端，单极；4 个单端，双极；2 个伪差分，单极；2 个伪差分，双极 |
MAX1036–MAX1039
External Reference
The external reference can range from 1.0V to VDD. For
maximum conversion accuracy, the reference must be
able to deliver up to 30A and have an output imped-
ance of 1kΩ or less. If the reference has a higher output
impedance or is noisy, bypass it to GND as close to
AIN_/REF as possible with a 0.1F capacitor.
Transfer Functions
Output data coding for the MAX1036–MAX1039 is binary
in unipolar mode and two’s complement binary in bipolar
mode with 1LSB = (VREF/2N) where N is the number of
bits (8). Code transitions occur halfway between succes-
sive-integer LSB values. Figures 12 and 13 show the
input/output (I/O) transfer functions for unipolar and bi-
polar operations, respectively.
Layout, Grounding, and Bypassing
For best performance, use PC boards. Wire-wrap config-
urations are not recommended since the layout should
ensure proper separation of analog and digital traces. Do
not run analog and digital lines parallel to each other, and
do not lay out digital signal paths underneath the ADC
package. Use separate analog and digital PC board
ground sections with only one star point (Figure 14) con-
necting the two ground systems (analog and digital). For
lowest noise operation, ensure the ground return to the
star ground’s power supply is low impedance and as
short as possible. Route digital signals far away from sen-
sitive analog and reference inputs.
High-frequency noise in the power supply (VDD) could
influence the proper operation of the ADC’s fast
comparator. Bypass VDD to the star ground with a
0.1F capacitor located as close as possible to the
MAX1036–MAX1039 power-supply pin. Minimize
capacitor lead length for best supply-noise rejection,
and add an attenuation resistor (5Ω) if the power sup-
ply is extremely noisy.
Definitions
Integral Nonlinearity
Integral nonlinearity (INL) is the deviation of the values
on an actual transfer function from a straight line. This
straight line can be either a best-straight-line fit or a line
drawn between the endpoints of the transfer function,
once offset and gain errors have been nullified. The INL
is measured using the endpoint method.
SCAN1
SCAN0
SCANNING CONFIGURATION
0
Scans up from AIN0 to the input selected by CS3–CS0 (default setting).
0
1
Converts the input selected by CS3–CS0 eight times.*
Scans up from AIN2 to the input selected by CS1 and CS0. When CS1 and CS0 are set for
AIN0–AIN2, the scanning stops at AIN2 (MAX1036/MAX1037).
10
Scans up from AIN6 to the input selected by CS3–CS0. When CS3–CS0 is set for AIN0–AIN6
scanning stops at AIN6 (MAX1038/MAX1039).
1
Converts the channel selected by CS3–CS0.*
Table 5. Scanning Configuration
*
When operating in external clock mode, there is no difference between SCAN[1:0] = 01 and SCAN[1:0] = 11 and converting continues
until a not acknowledge occurs.
SEL2
SEL1
SEL0
REFERENCE VOLTAGE
AIN_/REF
INTERNAL REFERENCE
STATE
00X
VDD
Analog input
Always Off
0
1
X
External reference
Reference input
Always Off
1
0
Internal reference
Analog input
Auto Shutdown
1
0
1
Internal reference
Analog input
Always On
1
X
Internal reference
Reference output
Always On
Table 6. Reference Voltage and AIN_/REF Format
X = Don’t care.
2.7V to 3.6V and 4.5V to 5.5V, Low-Power,
4-/12-Channel 2-Wire Serial 8-Bit ADCs
______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1036-MAX1039 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:2.7V to 5.5V, Low-Power, 4-/12-Channel 2-Wire Serial 8-Bit ADCs |
| MAX1036MEKA | 制造商:Maxim Integrated Products 功能描述:- Cut Tape Product 制造商:Rochester Electronics LLC 功能描述: |
| MAX1036MEKA+ | 制造商:Maxim Integrated Products 功能描述:ADC SGL SAR 188KSPS 8BIT SERL 8PIN SOT-23 - Cut Tape Product |
| MAX1036MEKA+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 |
| MAX1036MEKA-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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