参数资料
型号: MAX1303BEUP+
厂商: Maxim Integrated Products
文件页数: 6/29页
文件大小: 0K
描述: IC ADC 16BIT MULT RANGE 20TSSOP
产品培训模块: Lead (SnPb) Finish for COTS
标准包装: 74
位数: 16
采样率(每秒): 115k
数据接口: 串行
转换器数目: 1
功率耗散(最大): 879mW
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: 20-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 20-TSSOP
包装: 管件
输入数目和类型: 4 个单端,单极;4 个单端,双极;2 个差分,双极
MAX1303
Track-and-Hold Circuitry
The MAX1303 features a switched-capacitor T/H archi-
tecture that allows the analog input signal to be stored as
charge on sampling capacitors. See Figures 1, 2, and 3
for T/H timing and the sampling instants for each operat-
ing mode. The MAX1303 analog input circuitry buffers
the input signal from the sampling capacitors, resulting
in a constant analog input impedance with varying input
voltage (Figure 4).
Analog Input Circuitry
Select differential or single-ended conversions using the
associated analog input configuration byte (Table 2).
The analog input signal source must be capable of dri-
ving the ADC’s 6k
input resistance (Figure 5).
Figure 5 shows the simplified analog input circuit. The
analog inputs are ±6V fault tolerant and are protected
by back-to-back diodes. The summing junction voltage,
VSJ, is a function of the channel’s input common-mode
voltage:
As a result, the analog input impedance is relatively
constant over the input voltage as shown in Figure 4.
Single-ended conversions are internally referenced to
AGND1 (Tables 3 and 4). In differential mode, IN+ and
IN- are selected according to Tables 3 and 5. When con-
figuring differential channels, the differential pair follows
the analog configuration byte for the positive channel.
For example, to configure CH2 and CH3 for a ±VREF dif-
ferential conversion, set the CH2 analog configuration
byte for a differential conversion with the ±VREF range
(1010 1100). To initiate a conversion for the CH2 and
CH3 differential pair, issue the command 1010 0000.
V
R
RR
V
R
RR
V
SJ
CM
.
=
+
×+
+
×
1
12
2 375
1
12
4-Channel, ±VREF Multirange Inputs,
Serial 16-Bit ADC
14
______________________________________________________________________________________
CS
SCLK
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
DIN
S
C2
C1
C0
0
ANALOG INPUT
TRACK AND HOLD*
DOUT
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
BYTE 1
BYTE 2
BYTE 3
BYTE 4
SSTRB
HOLD
TRACK
HOLD
HIGH
IMPEDANCE
tACQ
HIGH
IMPEDANCE
*TRACK AND HOLD TIMING IS CONTROLLED BY SCLK.
fSAMPLE
≈ fSCLK/32
SAMPLING INSTANT
Figure 1. External Clock-Mode Conversion (Mode 0)
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相关代理商/技术参数
参数描述
MAX1303BEUP+ 功能描述:模数转换器 - ADC 16-Bit 4Ch 115ksps 4.136V 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
MAX1303BEUP+T 功能描述:模数转换器 - ADC 16-Bit 4Ch 115ksps 4.136V 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
MAX1303BEUP-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
MAX13041ASD/V+ 功能描述:CAN 接口集成电路 80V Fault-Protected High-Speed RoHS:否 制造商:Texas Instruments 类型:Transceivers 工作电源电压:5 V 电源电流: 工作温度范围:- 40 C to + 85 C 封装 / 箱体:SOIC-8 封装:Tube
MAX13041ASD/V+T 功能描述:CAN 接口集成电路 80V Fault-Protected High-Speed RoHS:否 制造商:Texas Instruments 类型:Transceivers 工作电源电压:5 V 电源电流: 工作温度范围:- 40 C to + 85 C 封装 / 箱体:SOIC-8 封装:Tube