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参数资料
| 型号： | MAX19542EGK |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | ADC |
| 英文描述： | 1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, QCC68 |
| 封装： | 10 X 10 MM, 0.9 MM HEIGHT, MO-220, QFN-68 |
| 文件页数： | 8/24页 |
| 文件大小： | 582K |
| 代理商： | MAX19542EGK |
MAX19542
12-Bit, 170Msps ADC with CMOS
Outputs for Wideband Applications
16
______________________________________________________________________________________
Table 1. MAX19542 Digital Output Coding
INP ANALOG INPUT
VOLTAGE LEVEL
INN ANALOG INPUT
VOLTAGE LEVEL
OVERRANGE
ORA/ORB
BINARY
DIGITAL OUTPUT CODE
(D_11–D_0)
TWO’S-COMPLEMENT
DIGITAL OUTPUT CODE
(D_11–D_0)
> VREF + 0.35V
< VREF - 0.35V
1
1111 1111 1111
(exceeds +FS, OR set)
0111 1111 1111
(exceeds +FS, OR set)
VREF + 0.35V
VREF - 0.35V
0
1111 1111 1111
(+FS)
0111 1111 1111
(+FS)
VREF
0
1000 0000 0000 or
0111 1111 1111
(FS/2)
0000 0000 0000 or
1111 1111 1111
(FS/2)
VREF - 0.35V
VREF + 0.35V
0
0000 0000 0000
(-FS)
1000 0000 0000
(-FS)
< VREF + 0.35V
> VREF - 0.35V
1
00 0000 0000
(exceeds -FS, OR set)
10 0000 0000
(exceeds -FS, OR set)
Digital Outputs
(DA0–DA11, DCLKP, DCLKN, ORA,
DB0–DB11, ORB) and Control Input
T/B
Digital outputs DA0/DB0–DA11/DB11, DCLKP, DCLKN,
ORA/ORB are CMOS compatible, and data on DA0/DB
DA11/DB11 are presented in either binary or two’s-
complement format (Table 1). The
T/B control line is an
LVCMOS-compatible input that allows the user to select
the desired output format. Drive
T/B high to select data
to be output in offset binary format and drive it low to
select data to be output in two’s complement format on
the 12-bit parallel bus.
T/B has an internal pulldown
resistor and can be left unconnected in applications
using only two’s-complement output format. The CMOS
outputs are powered from a separate power supply that
can be operated between 1.7V and 1.9V.
The MAX19542 offers an additional differential output
pair (ORA, ORB) to flag overrange conditions, where
overrange is above positive or below negative full scale.
An overrange condition is identified with ORA/ORB tran-
sitioning high.
Note: Keep the capacitive load on the digital outputs as
low as possible. Use digital buffers on the digital out-
puts of the ADC when driving larger loads to improve
overall performance and reduce system timing con-
straints. Further improvements in dynamic performance
can be achieved by adding small series resistors
(100
) to the digital output paths, close to the ADC.
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相关代理商/技术参数 |
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| MAX19542EGK+D | 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 |
| MAX19542EGK+TD | 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 |
| MAX19542EGK-D | 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 |
| MAX19542EGK-TD | 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 |
| MAX1954AEUB | 功能描述:电流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
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