AVDD = DV
參數(shù)資料
型號(hào): AD7294BCPZ
廠(chǎng)商: Analog Devices Inc
文件頁(yè)數(shù): 49/49頁(yè)
文件大小: 0K
描述: IC ADC 12BIT I2C/SRL 1M 56LFCSP
標(biāo)準(zhǔn)包裝: 1
類(lèi)型: ADC,DAC
分辨率(位): 12 b
采樣率(每秒): 22.22k
數(shù)據(jù)接口: I²C,串行
電壓電源: 模擬和數(shù)字
電源電壓: 4.4 V ~ 5.5 V
工作溫度: -40°C ~ 105°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 56-VFQFN 裸露焊盤(pán),CSP
供應(yīng)商設(shè)備封裝: 56-LFCSP-VQ(8x8)
包裝: 托盤(pán)
AD7294
Data Sheet
Rev. H | Page 8 of 48
GENERAL SPECIFICATIONS
AVDD = DVDD = 4.5 V to 5.5 V, AGND = DGND = 0 V, VREF = 2.5 V internal or external; VDRIVE = 2.7 V to 5.5 V; VPP = AVDD to 59.4 V;
DAC OUTV+ AB and DAC OUTV+ CD = 4.5 V to 16.5 V; OFFSET IN x is floating, therefore, DAC output span = 0 V to 5 V;
TA = 40°C to +105°C, unless otherwise noted.
Table 3.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
LOGIC INPUTS
Input High Voltage, V
IH
0.7 V
DRIVE
V
SDA, SCL only
Input Low Voltage, V
IL
0.3 V
DRIVE
V
SDA, SCL only
Input Leakage Current, I
IN
±1
A
Input Hysteresis, V
HYST
0.05 V
DRIVE
V
Input Capacitance, C
IN
8
pF
Glitch Rejection
50
ns
Input filtering suppresses noise spikes of less
than 50 ns
I2C Address Pins Maximum External
Capacitance if Floating
30
pF
Tristate input
LOGIC OUTPUTS
SDA, ALERT
SDA and ALERT/BUSY are open-drain outputs
Output Low Voltage, V
OL
0.4
V
I
SINK = 3 mA
0.6
V
I
SINK = 6 mA
Floating-State Leakage Current
±1
A
Floating-State Output Capacitance
8
pF
I
SENSE OVERRANGE
I
SENSE OVERRANGE is a push-pull output
Output High Voltage, V
OH
V
DRIVE 0.2
V
I
SOURCE = 200 A for push-pull outputs
Output Low Voltage, V
OL
0.2
V
I
SINK = 200 A for push-pull outputs
Overrange Setpoint
V
FS
V
FS × 1.2
mV
V
FS = ±VREF ADC/12.5
POWER REQUIREMENTS
V
PP
AV
DD
59.4
V
AV
DD
4.5
5.5
V
V(+)
4.5
16.5
V
DV
DD
4.5
5.5
V
Tie DV
DD to AVDD
V
DRIVE
2.7
5.5
V
I
DD Dynamic
5.3
6.5
mA
AV
DD + DVDD + VDRIVE, DAC outputs unloaded
DAC OUTV+ x, I
DD
0.6
1.2
mA
@ midscale output voltage, DAC outputs
unloaded
Power Dissipation
70
105
mW
Power-Down
I
DD
0.5
1
A
For each AV
DD and VDRIVE
DI
DD
1
16.5
A
DAC OUTV+ x, I
DD
35
60
A
Power Dissipation
2.5
mW
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