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参数资料
| 型号： | MAX116EVKIT |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 14/14页 |
| 文件大小： | 0K |
| 描述： | EVAL KIT FOR MAX116 |
| 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： | 12 |
| 采样率（每秒）： | 116k |
| 数据接口： | 并联 |
| 输入范围： | ±2.5 V |
| 在以下条件下的电源（标准）： | 17mW @ 116kSPS |
| 工作温度： | 0°C ~ 70°C |
| 已用 IC / 零件： | MAX116 |
| 已供物品： | 板，CD |
Track/Holds
The MAX115/MAX116 feature four simultaneous T/Hs.
Each T/H has two multiplexed inputs. A T-switch input
configuration provides excellent hold-mode isolation.
Allow 600ns acquisition time for 12-bit accuracy.
The T/H aperture delay is typically 10ns. The 500ps
aperture-delay mismatch between the T/Hs allows the
relative phase information of up to four different inputs
to be preserved. Figure 3 shows the equivalent input
circuit, illustrating the ADC’s sampling architecture.
Only one of four T/H stages with its two multiplexed
inputs (CH_A and CH_B) is shown. All switches are in
track configuration for channel A. An internal buffer
charges the hold capacitor to minimize the required
acquisition time between conversions. The analog input
appears as a 10k
resistor in parallel with a 16pF
capacitor for the MAX115 and as a 1M
resistor in par-
allel with a 16pF capacitor for the MAX116.
Between conversions, the buffer input is connected to
channel 1 of the selected track/hold bank. When a
channel is not selected, switches S1, S2, and S3 are
placed in hold mode to improve channel-to-channel
isolation.
Digital Interface
Input data (A0–A3) and output data (D0–D11) are multi-
plexed on a three-state bidirectional interface. This par-
allel I/O can easily be interfaced with a microprocessor
(P) or DSP. CS, WR, and RD control the write and read
operations. CS is the standard chip-select signal, which
enables the controller to address the MAX115/MAX116
as an I/O port. When CS is high, it disables the WR and
RD inputs and forces the interface into a high-Z state.
Figure 4 details the interface timing.
Programming Modes
The MAX115/MAX116 have eight conversion modes
plus power-down, which are programmed through a
bidirectional parallel interface. At power-up, the devices
default to the Input Mux A/Single-Channel Conversion
mode. The user can select between two banks (mux
inputs A or mux inputs B) of four simultaneous-sampled
input channels, as illustrated in Figure 2. An internal
microsequencer can be programmed to convert one to
four channels of the selected bank per sample. For a
single-channel conversion, CH1 is digitized, and then
INT goes low to indicate completion of the conversion.
MAX115/MAX116
2x4-Channel, Simultaneous-Sampling
12-Bit ADCs
_______________________________________________________________________________________
9
CH1
CH2
CH3
CH4
tACQ
tCONV
tAH
tAS
t WR
tCWH
tDH
tDA
tRD
tCRS
tCRH
tRD
tID
tCWS
CONVST
INT
CS
WR
DATA
tCW
DATA IN
RD
Figure 4. Timing Diagram
Figure 5. Programming a Four-Channel Conversion, Input Mux A
A0
(LSB)
WR
CS
A1
A2
A3
相关PDF资料 |
PDF描述 |
|---|---|
| MAX115EVKIT | EVAL KIT FOR MAX115 |
| PCM18XD1 | MODULE PIC18F248/258/448/458 |
| LGN2H101MELB25 | CAP ALUM 100UF 500V 20% SNAP |
| GSC13DREI | CONN EDGECARD 26POS .100 EYELET |
| MAX117EVKIT-DIP | EVAL KIT FOR MAX117 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX116XXI2CMB+ | 制造商:Maxim Integrated Products 功能描述:EV KIT - Rail/Tube |
| MAX1170CDJ | 制造商:Maxim Integrated Products 功能描述: |
| MAX1171CDJ | 制造商:Maxim Integrated Products 功能描述: |
| MAX1174ACUP | 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 |
| MAX1174ACUP+ | 功能描述:模数转换器 - ADC 14-Bit 135ksps 4.2V 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 |
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