参数资料
型号: MAX110EVC32-DIP
厂商: Maxim Integrated Products
文件页数: 2/24页
文件大小: 0K
描述: EVAL KIT FOR MAX110
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: 14
采样率(每秒): 50
数据接口: 串行
输入范围: ±VREF
在以下条件下的电源(标准): 4.35mW @ 50SPS
工作温度: 0°C ~ 70°C
已用 IC / 零件: MAX110,MAX111
已供物品: 2 板,CD
MAX110/MAX111
Low-Cost, 2-Channel, ±14-Bit Serial ADCs
10
______________________________________________________________________________________
Oversampling Clock
XCLK internally connects to a clock-frequency divider
network, whose output is the ADC oversampling clock,
fOSC. This allows the selected clock source (internal RC
oscillator or external clock applied to XCLK) to be
divided by one, two, or four (see
Clock Divider-Ratio
Control Bits).
Figure 3 shows the two methods for providing the over-
sampling clock to the MAX110/MAX111. In external-
clock mode (Figure 3a), the internal RC oscillator is
disabled and XCLK accepts a TTL/CMOS-level clock to
provide the oversampling clock to the ADC.
Select external-clock mode (Figure 3a) by connecting
RCSEL to GND and a TTL/CMOS-compatible clock to
XCLK (see
Selecting the Oversampling Clock
Frequency).
In RC-oscillator mode (Figure 3b), the internal RC oscil-
lator is active and its output is connected to XCLK
(Figure 1). Select RC-oscillator mode by connecting
RCSEL to VDD. This enables the internal oscillator and
connects it to XCLK for use by the ADC and external
system components. Minimize the capacitive loading on
XCLK when using the internal RC oscillator.
DIFFERENTIAL
ANALOG
INPUT
VREF+
DC LEVEL AT 1/2 VREF
VREF-
VREF+
VREF-
OUTPUT FROM
1-BIT DAC
OVERSAMPLING
CLOCK
MAX110
MAX111
Figure 2. ADC Waveforms During a Conversion
Figure 1. Functional Diagram
IN1+
IN+
IN-
INPUT
MUX
IN1-
IN2+
IN2-
REF+
Gm
REF-
Gm
INTEGRATOR
UP/DOWN
COUNTER
-
Σ
DITHER
GENERATOR
SERIAL
SHIFT
REGISTER
DIN
SCLK CS
16
CONTROL
REGISTER
DOUT
BUSY
RCSEL
XCLK
OSC
TIMER + CONTROL
LOGIC + CLOCK GENERATOR
DIVIDER
NETWORK,
DIVIDE BY
1, 2, OR 4
RC
OSCILLATOR
MAX110
MAX111
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MAX110EVKIT 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Evaluation Kit for the MAX110/MAX111
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