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| 型号： | EVAL-AD5560EBUZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 28/68页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR AD5560 |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电源监控器/跟踪器/序列发生器 |
| 已用 IC / 零件： | AD5560 |
| 次要属性： | 串行接口 |
| 已供物品： | 板 |
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AD5560
Data Sheet
Rev. D | Page 34 of 68
VMIN is another inportant voltage level that is used in other
parts of the circuit. When using a MEASOUT gain of 0.2, the
VMIN level is used to scale the voltage range; therefore, when
choosing supply rails, it is very important to ensure that there
is sufficient footroom so that the VMIN level is not impinged
on (the high voltage DAC amplifiers used here require
AVDD/AVSS Power Supply Rails section for more information.
VMIN = 5.125 × VREF × (OFFSET_DAC_CODE/216)
Table 9. MEASOUT Output Ranges
MEASOUT Function
GAIN1 = 0, MEASOUT Gain = 1
Transfer Function
Output Voltage Range1
Offset DAC =
0x0
Offset DAC = 0x8000
Offset DAC = 0xE000
Measure Voltage (MV)
±V
DUT
0 V to 25.62 V
±12.81 V
22.42 V to +3.2 V
Measure
Current
(MI)
GAIN0 = 0
MI gain = 20
(I
DUT × RSENSE × 20) + VMID
0 V to 25.62 V
±12.81 V
22.42 V to +3.2 V
GAIN0 = 1
MI gain = 10
(I
DUT × RSENSE × 10) + VMID
0 V to 12.81 V
(V
REF = 2.5 V)
±6.4 V
(V
REF = 2.5 V)
11.2 V to +1.6 V
(V
REF = 2.5 V)
1 VREF = 5 V, unless otherwise noted.
Table 10.
MEASOUT Function
GAIN1 = 1, MEASOUT Gain = 0.2
Transfer Function
Output Voltage Range1, 2
Measure Voltage (MV)
MV = 0.2 × (V
DUT VMIN)
0 V to 5.12 V (±2.56 V centered around 2.56 V)
(includes overrange)
Measure
Current
(MI)
GAIN0 = 0
MI gain = 20
(I
DUT × RSENSE × 20 × 0.2) + 0.5125 × VREF
0 V to 5.12 V (±2.56 V centered around 2.56 V)
(includes overrange)
GAIN0 = 1
MI gain = 10
(I
DUT × RSENSE × 10 × 0.2) + 0.5125 × VREF
1.28 V to 3.84 V (±1.28 V, centered around 2.56 V)
0 V to 2.56 V (±1.28 V, centered around 1.28 V)
(V
REF = 2.5 V)
1 VREF = 5 V, unless otherwise noted.
2 The offset DAC setting has no effect on the output voltage range.
Table 11. Possible ADCs and ADC Drivers for Use with AD55601
Part
No.
Resolution
Sample
Rate
Channels
AIN Range2
Interface
ADC Driver
Multiplexer3
Package
16
250 kSPS
1
0 to VREF
Serial, SPI
ADA4841-x
ADG704, ADG708
MSOP,
LFCSP
16
500 kSPS
1
0 to VREF
Serial, SPI
ADA4841-x
ADG704, ADG708
MSOP,
LFCSP
16
500 kSPS
1
VREF to +VREF
Serial, SPI
ADA4841-x,
ADA4941-1
ADG1404,
ADG1408,
ADG1204
MSOP,
LFCSP
16
250 kSPS
1
Bipolar 10 V, bipolar
5 V, unipolar 10 V,
unipolar 5 V
Serial, parallel
AD8021
AD1404, ADG1408,
ADG1204
LFCSP,
LQFP
16
1 MSPS
4
0 V to 5 V
Serial, SPI
ADA4841-x/
AD8021
LQFP,
LFCSP
1 Subset of the possible ADCs, ADC drivers, and multiplexers suitable for use with the AD5560. Visit http://www.analog.com for more options.
2 Do not allow the MEASOUT output range to exceed the AIN range of the ADC.
3 For the purposes of sharing ADCs among multiple DPS channels, note that the multiplexer is not absolutely necessary because the AD5560 MEASOUT path has a
tristate mode.
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