- 您现在的位置：买卖IC网 > PDF目录9915 > MAX1280BCUP+T (Maxim Integrated Products)IC ADC 12BIT 400KSPS 20-TSSOP PDF资料下载
参数资料
| 型号： | MAX1280BCUP+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/24页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT 400KSPS 20-TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 位数： | 12 |
| 采样率（每秒）： | 400k |
| 数据接口： | MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 559mW |
| 电压电源： | 单电源 |
| 工作温度： | 0°C ~ 70°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： | 带卷 (TR) |
| 输入数目和类型： | 8 个单端，单极；8 个单端，双极；4 个伪差分，单极；4 个伪差分，双极 |
MAX1280/MAX1281
400ksps/300ksps, Single-Supply, Low-Power, 8-Channel,
Serial 12-Bit ADCs with Internal Reference
______________________________________________________________________________________
15
Serial Clock
The external serial clock not only shifts data in and out,
but also drives the analog-to-digital conversion steps.
SSTRB pulses high for one clock period after the last bit
of the control byte. Successive-approximation bit deci-
sions are made and appear at DOUT on each of the next
12 SCLK falling edges (Figure 6). SSTRB and DOUT go
into a high-impedance state when CS goes high; after
the next CS rising edge, SSTRB outputs a logic low.
Figure 7 shows the detailed serial-interface timing.
The conversion must complete in 120s or less, or
droop on the sample-and-hold capacitors may degrade
conversion results.
Data Framing
The falling edge of CS does
not start a conversion. The
first logic high clocked into DIN is interpreted as a start
bit and defines the first bit of the control byte. A conver-
sion starts on SCLK’s falling edge after the eighth bit of
the control byte (the PD0 bit) is clocked into DIN. The
start bit is defined as follows:
The first high bit clocked into DIN with CS low any
time the converter is idle, e.g., after VDD1 and VDD2
are applied.
OR
The first high bit clocked into DIN after bit 6 of a con-
version in progress is clocked onto the DOUT pin.
Once a start bit has been recognized, the current con-
version may only be terminated by pulling SHDN low.
The fastest the MAX1280/MAX1281 can run with CS
held low between conversions is 16 clocks per conver-
sion. Figure 8 shows the serial-interface timing neces-
sary to perform a conversion every 16 SCLK cycles. If
CS is tied low and SCLK is continuous, guarantee a
start bit by first clocking in 16 zeros.
Applications Information
Power-On Reset
When power is first applied, and if SHDN is not pulled
low, internal power-on reset circuitry activates the
MAX1280/MAX1281 in normal operating mode, ready to
convert with SSTRB = low. The MAX1280/MAX1281
require 10s to reset after the power supplies stabilize;
no conversions should be initiated during this time. If
CS is low, the first logic 1 on DIN is interpreted as a
start bit. Until a conversion takes place, DOUT shifts out
zeros. Additionally, wait for the reference to stabilize
when using the internal reference.
Power Modes
You can save power by placing the converter in one of
the two low-current operating modes or in full power-
down between conversions. Select the power mode
through bit 1 and bit 0 of the DIN control byte (Tables 1
and 4), or force the converter into hardware shutdown
by driving SHDN to GND.
The software power-down modes take effect after the
conversion is completed; SHDN overrides any software
power mode and immediately stops any conversion in
SCLK
DIN
DOUT
SSTRB
tCSS
tCH
tCSO
tCL
tDH
tDS
tDOE
tSTE
tCSW
tCP
tCSH
tCS1
tSTD
tDOD
tDOV
tDOH
tSTV
tSTH
CS
Figure 7. Detailed Serial-Interface Timing
相关PDF资料 |
PDF描述 |
|---|---|
| D38999/26WE26SD | CONN PLUG 26POS STRAIGHT W/SCKT |
| IDT723656L15PF | IC FIFO SYNC 4096X36 128QFP |
| MAX1229BEEP+T | IC ADC 12BIT 300KSPS 20-QSOP |
| ICL3223EIAZ | IC 2DRVR/2RCVR RS232 3V 20-SSOP |
| MAX1228BEEP+T | IC ADC 12BIT 300KSPS 20-QSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1280BEUP | 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 |
| MAX1280BEUP+ | 功能描述:模数转换器 - ADC 12-Bit 8Ch 400ksps 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 |
| MAX1280BEUP+T | 功能描述:模数转换器 - ADC 12-Bit 8Ch 400ksps 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 |
| MAX1280BEUP-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 |
| MAX1280EVC16 | 功能描述:数据转换 IC 开发工具 MAX1280 Eval System 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 |
发布紧急采购，3分钟左右您将得到回复。