AVDD = DVDD = 2.5 V, BVDD = 5 V, VIO = 1.8 V to 2.7 V, VREF
參數(shù)資料
型號(hào): AD7986BCPZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 23/28頁(yè)
文件大?。?/td> 0K
描述: IC ADC 18BIT 2MSPS SAR 20LFCSP
產(chǎn)品培訓(xùn)模塊: Motor Control
標(biāo)準(zhǔn)包裝: 1
位數(shù): 18
采樣率(每秒): 2M
數(shù)據(jù)接口: MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 34mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 20-VFQFN 裸露焊盤(pán),CSP
供應(yīng)商設(shè)備封裝: 20-LFCSP-VQ
包裝: 托盤(pán)
輸入數(shù)目和類(lèi)型: 1 個(gè)差分,雙極
產(chǎn)品目錄頁(yè)面: 780 (CN2011-ZH PDF)
AD7986
Rev. B | Page 4 of 28
AVDD = DVDD = 2.5 V, BVDD = 5 V, VIO = 1.8 V to 2.7 V, VREF = 4.096 V, TA = 40°C to +85°C, unless otherwise noted.
Table 3.
Parameter
Conditions
Min
Typ
Max
Unit
INTERNAL REFERENCE
PDREF = low
Output Voltage
T
A= 25°C
4.081
4.096
4.111
V
Temperature Drift
40°C to +85°C
±10
ppm/°C
Line Regulation
AVDD = 2.5 V ± 5%
±50
ppm/V
Turn-On Settling Time
C
REF = 10 μF, CREFBUFIN = 0.1 μF
220
ms
REFIN Output Voltage
REFIN @ 25°C
1.2
V
REFIN Output Resistance
7.5
k
EXTERNAL REFERENCE
PDREF = high, REFIN = low
Voltage Range
2.4
5.1
V
Current Drain
2 MSPS, V
REF = 5.0 V
500
A
REFERENCE BUFFER
REFIN Input Voltage Range
1.2
V
REFIN Input Current
160
A
DIGITAL INPUTS
Logic Levels
V
IL
0.3
+0.1 × VIO
V
IH
+0.9 × VIO
VIO + 0.3
V
I
IL
1
+1
A
I
IH
1
+1
A
DIGITAL OUTPUTS
Data Format
Serial, 18 bits, twos complement
Pipeline Delay
Conversion results available immediately
after completed conversion
V
OL
I
SINK = +500 A
0.4
V
OH
I
SOURCE = 500 A
VIO 0.3
V
POWER SUPPLIES
AVDD, DVDD
2.375
2.5
2.625
V
BVDD
4.75
5.0
5.25
VIO
Specified performance
1.8
2.5
2.7
V
VIO Range
V
Standby Current1, 2
AVDD = DVDD = VIO = 2.5 V, BVDD = 5.0 V
2.25
A
Power Dissipation
With Internal Reference
2 MSPS throughput
29
34
mW
Without Internal Reference
2 MSPS throughput
15
16.5
mW
With Internal Reference
1.5 MSPS throughput
26
30
mW
Without Internal Reference
1.5 MSPS throughput
11.5
13
mW
TEMPERATURE RANGE3
Specified Performance
T
MIN to TMAX
40
+85
°C
1 With all digital inputs forced to VIO or GND as required.
2 During acquisition phase.
3 Contact an Analog Devices, Inc., sales representative for the extended temperature range.
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