参数资料
型号: AD5735ACPZ
厂商: Analog Devices Inc
文件页数: 19/48页
文件大小: 0K
描述: IC DAC QUAD VOLT CUR 64-LFCSP
标准包装: 1
设置时间: 18µs
位数: 12
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 4
电压电源: 模拟和数字,双 ±
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 64-VFQFN 裸露焊盘,CSP
供应商设备封装: 64-LFCSP-VQ(9x9)
包装: 托盘
输出数目和类型: 4 电流,4 电压
采样率(每秒): *
AD5735
Data Sheet
Rev. C | Page 26 of 48
TERMINOLOGY
Relative Accuracy or Integral Nonlinearity (INL)
Relative accuracy, or integral nonlinearity (INL), is a measure
of the maximum deviation from the best fit line through the
DAC transfer function. INL is expressed in percent of full-scale
range (% FSR). Typical INL vs. code plots are shown in Figure 8
Differential Nonlinearity (DNL)
Differential nonlinearity (DNL) is the difference between the
measured change and the ideal 1 LSB change between any two
adjacent codes. A specified DNL of ±1 LSB maximum ensures
monotonicity. The AD5735 is guaranteed monotonic by design.
Typical DNL vs. code plots are shown in Figure 9 and Figure 32.
Monotonicity
A DAC is monotonic if the output either increases or remains
constant for increasing digital input code. The AD5735 is
monotonic over its full operating temperature range.
Negative Full-Scale Error or Zero-Scale Error
Negative full-scale error is the error in the DAC output voltage
when 0x0000 (straight binary coding) is loaded to the DAC
register.
Zero-Scale Temperature Coefficient (TC)
Zero-scale TC is a measure of the change in zero-scale error
with a change in temperature. Zero-scale TC is expressed in
ppm FSR/°C.
Bipolar Zero Error
Bipolar zero error is the deviation of the analog output from the
ideal half-scale output of 0 V when the DAC register is loaded
with 0x8000 (straight binary coding).
Bipolar Zero Temperature Coefficient (TC)
Bipolar zero TC is a measure of the change in the bipolar zero
error with a change in temperature. It is expressed in ppm
FSR/°C.
Offset Error
In voltage output mode, offset error is the deviation of the
analog output from the ideal quarter-scale output when the
DAC is configured for a bipolar output range and the DAC
register is loaded with 0x4000 (straight binary coding).
In current output mode, offset error is the deviation of the
analog output from the ideal zero-scale output when all DAC
registers are loaded with 0x0000.
Offset Error Drift or Offset TC
Offset error drift, or offset TC, is a measure of the change in
offset error with changes in temperature and is expressed in
ppm FSR/°C.
Gain Error
Gain error is a measure of the span error of the DAC. It is the
deviation in slope of the DAC transfer function from the ideal,
expressed in % FSR.
Gain Temperature Coefficient (TC)
Gain TC is a measure of the change in gain error with changes
in temperature and is expressed in ppm FSR/°C.
Full-Scale Error
Full-scale error is a measure of the output error when full-scale
code is loaded to the DAC register. Ideally, the output should be
full-scale 1 LSB. Full-scale error is expressed in % FSR.
Full-Scale Temperature Coefficient (TC)
Full-scale TC is a measure of the change in full-scale error with
changes in temperature and is expressed in ppm FSR/°C.
Total Unadjusted Error (TUE)
Total unadjusted error (TUE) is a measure of the output error
that includes all the error measurements: INL error, offset error,
gain error, temperature, and time. TUE is expressed in % FSR.
DC Crosstalk
DC crosstalk is the dc change in the output level of one DAC in
response to a change in the output of another DAC. It is measured
with a full-scale output change on one DAC while monitoring
another DAC, which is at midscale.
Current Loop Compliance Voltage
The current loop compliance voltage is the maximum voltage
at the IOUT_x pin for which the output current is equal to the
programmed value.
Voltage Reference Thermal Hysteresis
Voltage reference thermal hysteresis is the difference in output
voltage measured at +25°C compared to the output voltage
measured at +25°C after cycling the temperature from +25°C to
40°C to +105°C and back to +25°C. The hysteresis is specified
for the first and second temperature cycles and is expressed in ppm.
Output Voltage Settling Time
Output voltage settling time is the amount of time it takes
for the output to settle to a specified level for a full-scale input
change. Plots of settling time are shown in Figure 23, Figure 48,
Slew Rate
The slew rate of a device is a limitation in the rate of change of
the output voltage. The output slewing speed of a voltage output
DAC is usually limited by the slew rate of the amplifier used at
its output. Slew rate is measured from 10% to 90% of the output
signal and is given in V/s.
Power-On Glitch Energy
Power-on glitch energy is the impulse injected into the analog
output when the AD5735 is powered on. It is specified as the
area of the glitch in nV-sec (see Figure 28 and Figure 45).
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