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参数资料
| 型号： | MAX1110EVKIT |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/20页 |
| 文件大小： | 0K |
| 描述： | EVAL KIT FOR MAX1110 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| ADC 的数量： | 1 |
| 位数： | 8 |
| 采样率（每秒）： | 50k |
| 数据接口： | 串行 |
| 输入范围： | 0 ~ VREF |
| 在以下条件下的电源（标准）： | 0.23mW @ 50kSPS |
| 工作温度： | 0°C ~ 70°C |
| 已用 IC / 零件： | MAX1110，MAX1112 |
| 已供物品： | 板，CD |
MAX1110/MAX1111
+2.7V, Low-Power, Multichannel,
Serial 8-Bit ADCs
______________________________________________________________________________________
13
Digital Output
In unipolar input mode, the output is straight binary
(Figure 15). For bipolar inputs, the output is two’s-com-
plement (Figure 16). Data is clocked out at SCLK’s
falling edge in MSB-first format.
Clock Modes
The MAX1110/MAX1111 can use either an external ser-
ial clock or the internal clock to perform the successive-
approximation conversion. In both clock modes, the
external clock shifts data in and out of the devices. Bit
PD0 of the control byte programs the clock mode.
Figures 8–11 show the timing characteristics common
to both modes.
External Clock
In external clock mode, the external clock not only
shifts data in and out, it also drives the analog-to-digital
conversion steps. SSTRB pulses high for two clock
periods after the last bit of the control byte. Successive-
approximation bit decisions are made and appear at
DOUT on each of the next eight SCLK falling edges
(Figure 7). After the eight data bits are clocked out,
subsequent clock pulses clock out zeros from the
DOUT pin.
SSTRB and DOUT go into a high-impedance state
when CS goes high; after the next CS falling edge,
SSTRB outputs a logic low. Figure 9 shows the SSTRB
timing in external clock mode.
The conversion must complete in 1ms, or droop on the
sample-and-hold capacitors can degrade conversion
results. Use internal clock mode if the serial-clock fre-
quency is less than 50kHz, or if serial-clock interruptions
could cause the conversion interval to exceed 1ms.
CS
SCLK
DIN
DOUT
tCSH
tCSS
tCL
tDS
tDH
tDV
tDO
tCH
tDO
tTR
tCSH
Figure 8. Detailed Serial-Interface Timing
tSDV
tSSTRB
PD0 CLOCKED IN
tSTR
SSTRB
SCLK
CS
tSSTRB
Figure 9. External Clock Mode SSTRB Detailed Timing
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1110EVL11-DIP | 功能描述:数据转换 IC 开发工具 MAX1110L11-Dip Eval RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| MAX1110MJP | 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 |
| MAX1111 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:+2.7V, Low-Power, Multichannel, Serial 8-Bit ADCs |
| MAX11110 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:2Msps/3Msps, Low-Power, Serial 12-/10-/8-Bit ADCs |
| MAX11110AUT+ | 制造商:Maxim Integrated Products 功能描述:SMALL, 2.2V TO 3.6V, LOW-POWER, 1-/2-CHANNEL, SERIAL, 8-/10- - Rail/Tube |
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