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参数资料
| 型号： | MAX19192ETI+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/22页 |
| 文件大小： | 0K |
| 描述： | IC ADC 8BIT DUAL 10MSPS 28-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 60 |
| 位数： | 8 |
| 采样率（每秒）： | 10M |
| 转换器数目： | 2 |
| 功率耗散（最大）： | 1.67W |
| 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： | 28-WFQFN 裸露焊盘 |
| 供应商设备封装： | 28-TQFN-EP（5x5） |
| 包装： | 管件 |
| 输入数目和类型： | 4 个单端，单极；2 个差分，单极 |
MAX19192
Ultra-Low-Power, 10Msps, Dual 8-Bit ADC
______________________________________________________________________________________
15
from heavy capacitive loads. To improve the dynamic
performance of the MAX19192, add 100
Ω resistors in
series with the digital outputs close to the MAX19192.
Refer to the MAX19192 evaluation kit schematic for an
example of the digital outputs driving a digital buffer
through 100
Ω series resistors.
Power Modes (PD0, PD1)
The MAX19192 has four power modes that are con-
trolled with PD0 and PD1. Four power modes allow the
MAX19192 to efficiently use power by transitioning to a
low-power state when conversions are not required
(Table 3).
Shutdown mode offers the most dramatic power sav-
ings by shutting down all the analog sections of the
MAX19192 and placing the outputs in three-state. The
wake-up time from shutdown mode is dominated by the
time required to charge the capacitors at REFP, REFN,
and COM. In internal reference mode and buffered
external reference mode, the wake-up time is typically
20s. When operating in the unbuffered external refer-
ence mode, the wake-up time is dependent on the
external reference drivers. When the outputs transition
from three-state to on, the last converted word is
placed on the digital outputs.
In standby mode, the reference and clock distribution
circuits are powered up, but the pipeline ADCs are
unpowered and the outputs are in three-state. The
wake-up time from standby mode is dominated by the
5.5s required to activate the pipeline ADCs. When the
outputs transition from three-state to on, the last con-
verted word is placed on the digital outputs.
DIFFERENTIAL INPUT VOLTAGE
(IN+ - IN-)
DIFFERENTIAL INPUT
(LSB)
OFFSET BINARY
(D7–D0)
OUTPUT DECIMAL CODE
+127
(+ full scale - 1 LSB)
1111 1111
255
+126
(+ full scale - 2 LSB)
1111 1110
254
+1
1000 0001
129
0 (bipolar zero)
1000 0000
128
-1
0111 1111
127
-127
(- full scale + 1 LSB)
0000 0001
1
-128 (- full scale)
0000 0000
0
VREF ×
127
128
VREF ×
126
128
VREF ×
1
128
VREF ×
0
128
-VREF ×
1
128
-VREF ×
127
128
-VREF ×
128
Table 2. Output Codes vs. Input Voltage
PD0
PD1
POWER MODE
ADC
INTERNAL
REFERENCE
CLOCK DISTRIBUTION
OUTPUTS
0
Shutdown
Off
Three-state
0
1
Standby
Off
On
Three-state
1
0
Idle
On
Three-state
1
Normal operating
On
Table 3. Power Logic
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX19192ETI/V+ | 制造商:Maxim Integrated Products 功能描述:ANALOG TO DIGITAL CONVERTER - Rail/Tube |
| MAX19192ETI/V+T | 制造商:Maxim Integrated Products 功能描述:ULTRA-LOW-POWER, 10MSPS, DUAL 8-BIT ADC - Tape and Reel |
| MAX19192ETI+ | 功能描述:模数转换器 - ADC Integrated Circuits (ICs) Analog to Digital Converters - IC ADC 8BIT DUAL 10MSPS 28-TQFN 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 |
| MAX19192ETI+T | 功能描述:模数转换器 - ADC Integrated Circuits (ICs) Analog to Digital Converters - IC ADC 8BIT DUAL 10MSPS 28-TQFN 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 |
| MAX191ACNG | 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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