参数资料
型号: MAX1169CEUD+T
厂商: Maxim Integrated Products
文件页数: 4/20页
文件大小: 0K
描述: IC ADC 16BIT 58.6KSPS 14-TSSOP
标准包装: 2,500
位数: 16
采样率(每秒): 58.6k
数据接口: I²C,串行
转换器数目: 1
功率耗散(最大): 864mW
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: 14-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 14-TSSOP
包装: 带卷 (TR)
输入数目和类型: 8 个单端,单极
MAX1169
The time required for the T/H to acquire an input signal
is a function of the analog input source impedance. If
the input signal source impedance is high, lengthen the
acquisition time by reducing fSCL. The MAX1169 pro-
vides two SCL cycles (tACQ) in which the track-and-
hold capacitance must acquire a charge representing
the input signal. Minimize the input source impedance
(RSOURCE) to allow the track-and-hold capacitance to
charge within the allotted time. RSOURCE should be
less than 11.3kΩ for fSCL = 400kHz and less than 2kΩ
for fSCL = 1.7MHz. RSOURCE is calculated with the fol-
lowing equation:
R
fIn(22 )
C
R
SOURCE
SCL
N
IN
××
×
2
58.6ksps, 16-Bit, 2-Wire Serial ADC
in a 14-Pin TSSOP
12
______________________________________________________________________________________
Figure 3. MAX1169 Simplified Functional Diagram
AIN
AGNDS
CONTROL
LOGIC
4MHz
INTERNAL
OSCILLATOR
OUTPUT SHIFT
REGISTER
T/H
SAR
ADC
REF
CLOCK
IN
OUT
+4.096V
REFERENCE
REFADJ
REF
5k
Ω
ADD0
ADD1
ADD2
ADD3
DVDD
AVDD
DGND
SCL
SDA
AGND
8
13
12
11
9
1
2
3
4
5
6
7
10
14
MAX1169
AV = 1.0
Figure 4. Typical Application Circuit
AIN
REF
10
μF
0.1
μF
REFADJ
AGNDS
AVDD
0.1
μF
AGND
DGND
ANALOG
SOURCE
ADD1
ADD0
ADD2
SCL
SDA
DVDD
0.1
μF
3.0V
5.0V
μC
VDD
SDA
SCL
RP
ADD3
VSS
8
13
12
11
14
91
2
3
4
5
6
7
10
I2C ADDRESS IS 0110111.
MAX1169
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