參數(shù)資料
型號: EVAL-AD7991EBZ
廠商: Analog Devices Inc
文件頁數(shù): 25/28頁
文件大?。?/td> 0K
描述: BOARD EVAL FOR AD7991
標(biāo)準(zhǔn)包裝: 1
ADC 的數(shù)量: 1
位數(shù): 12
采樣率(每秒): 1M
數(shù)據(jù)接口: 串行
輸入范圍: 0 ~ Vdd
在以下條件下的電源(標(biāo)準(zhǔn)): 4.4mW @ 5.5V,3.4MHz
工作溫度: -40°C ~ 125°C
已用 IC / 零件: AD7991
已供物品: 板,纜線,CD
產(chǎn)品目錄頁面: 780 (CN2011-ZH PDF)
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AD7991/AD7995/AD7999
Rev. B | Page 6 of 28
A Version2
Y Version
Parameter
Min
Typ
Max
Min
Typ
Max
Unit
Test Conditions/Comments
LOGIC INPUTS (SDA, SCL)
Input High Voltage, VINH
0.7 (VDD)
V
VDD = 2.7 V to 5.5 V
0.9 (VDD)
V
VDD = 2.35 V to 2.7 V
Input Low Voltage, VINL
0.3 (VDD)
V
VDD = 2.7 V to 5.5 V
0.1 (VDD)
V
VDD = 2.35 V to 2.7 V
Input Leakage Current, IIN
±1
μA
VIN = 0 V or VDD
Input Capacitance, CIN7
10
pF
Input Hysteresis, VHYST
0.1 (VDD)
V
LOGIC OUTPUTS (OPEN
DRAIN)
Output Low Voltage, VOL
0.4
V
ISINK = 3 mA
0.6
V
ISINK = 6 mA
Floating-State Leakage
Current
±1
μA
Floating-State Output
10
pF
Output Coding
Straight (natural) binary
THROUGHPUT RATE
18 × (1/fSCL)
fSCL ≤ 1.7 MHz; see the
section
17.5 × (1/fSCL) +
2 μs
17.5 × (1/fSCL) +
2 μs
fSCL > 1.7 MHz; see the
section
POWER REQUIREMENTS3
VREF = VDD; for fSCL = 3.4 MHz,
clock stretching is implemented
VDD
2.7
5.5
2.7
5.5
V
IDD
Digital inputs = 0 V or VDD
0.09/0.25
mA
VDD = 3.3 V/5.5 V, 400 kHz fSCL
ADC Operating,
Interface Active
(Fully Operational)
0.25
0.25/0.8
mA
VDD = 3.3 V/5.5 V, 3.4 MHz fSCL
0.07/0.16
mA
VDD = 3.3 V/5.5 V, 400 kHz fSCL
Power-Down, Interface
0.26
0.26/0.85
mA
VDD = 3.3 V/5.5 V, 3.4 MHz fSCL
Power-Down, Interface
1
1/1.6
μA
VDD = 3.3 V/5.5 V
Power Dissipation
0.3/1.38
mW
VDD = 3.3 V/5.5 V, 400 kHz fSCL
ADC Operating,
Interface Active
(Fully Operational)
0.83
0.83/4.4
mW
VDD = 3.3 V/5.5 V, 3.4 MHz fSCL
0.24/0.88
mW
VDD = 3.3 V/5.5 V, 400 kHz fSCL
Power-Down, Interface
0.86
0.86/4.68
mW
VDD = 3.3 V/5.5 V, 3.4 MHz fSCL
Power-Down, Interface
3.3
3.3/8.8
μW
VDD = 3.3 V/5.5 V
1 Functional from VDD = 2.35 V.
2 A Version tested at VDD = 3.3 V and fSCL = 3.4 MHz. Functionality tested at fSCL = 400 kHz.
3 Sample delay and bit trial delay enabled, t1 = t2 = 0.5/fSCL.
4 For fSCL up to 400 kHz, clock stretching is not implemented. Above fSCL = 400 kHz, clock stretching is implemented.
5 See the Terminology section.
6 For fSCL ≤ 1.7 MHz, clock stretching is not implemented; for fSCL > 1.7 MHz, clock stretching is implemented.
7 Guaranteed by initial characterization.
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