參數(shù)資料
型號: AD7732BRUZ-REEL
廠商: Analog Devices Inc
文件頁數(shù): 27/32頁
文件大?。?/td> 0K
描述: IC ADC 24BIT 2CH SIG-DEL 28TSSOP
標準包裝: 2,500
位數(shù): 24
采樣率(每秒): 15.4k
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 100mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 105°C
安裝類型: 表面貼裝
封裝/外殼: 28-TSSOP(0.173",4.40mm 寬)
供應商設備封裝: 28-TSSOP
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 2 個差分,單極;2 個差分,雙極
配用: EVAL-AD7732EBZ-ND - BOARD EVAL FOR AD7732
AD7732
Rev. A | Page 4 of 32
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
RA, RB, RC, RD Pin Impedance1, 9
25
31
k
Ω
Input Resistor Matching
0.2
%
Input Resistor Temp. Coefficient
–30
ppm/°C
REFERENCE INPUTS
REFIN(+) to REFIN(–) Voltage1, 10
2.475
2.5
2.525
V
NOREF Trigger Voltage
0.5
V
NOREF Bit in Channel Status Register
REFIN(+), REFIN(–)
Common-Mode Voltage1
0
AVDD
V
Reference Input DC Current11
400
μA
SYSTEM CALIBRATION1, 12
Full-Scale Calibration Limit
+1.05
× FS
V
Zero-Scale Calibration Limit
–1.05
× FS
V
Input Span
0.8
× FS
2.1
× FS
V
LOGIC INPUTS
Input Current
±1
μA
Input Current CS
±10
μA
CS = DVDD
–40
μA
CS = DGND, Internal Pull-Up Resistor
Input Capacitance
5
pF
1.4
2
V
DVDD = 5 V
0.8
1.4
V
DVDD = 5 V
VT+ – VT–1
0.3
0.85
V
DVDD = 5 V
0.95
2
V
DVDD = 3 V
0.4
1.1
V
DVDD = 3 V
VT+ – VT–1
0.3
0.85
V
DVDD = 3 V
MCLK IN ONLY
Input Current
±10
μA
Input Capacitance
5
pF
VINL Input Low Voltage
0.8
V
DVDD = 5 V
VINH Input High Voltage
3.5
V
DVDD = 5 V
VINL Input Low Voltage
0.4
V
DVDD = 3 V
VINH Input High Voltage
2.5
V
DVDD = 3 V
LOGIC OUTPUTS13
VOL Output Low Voltage
0.4
V
ISINK = 800 μA, DVDD = 5 V
VOH Output High Voltage
4.0
V
ISOURCE = 200 μA, DVDD = 5 V
VOL Output Low Voltage
0.4
V
ISINK = 100 μA, DVDD = 3 V
VOH Output High Voltage
DVDD – 0.6
V
ISOURCE = 100 μA, DVDD = 3 V
Floating State Leakage Current
±1
μA
Floating State Leakage Capacitance
3
pF
P0, P1 INPUTS/OUTPUTS
Levels Referenced to Analog Supplies
Input Current
±10
μA
VINL Input Low Voltage
0.8
V
AVDD = 5 V
VINH Input High Voltage
3.5
V
AVDD = 5 V
VOL Output Low Voltage
0.4
V
ISINK = 7 mA, See Abs. Max. Ratings
VOH Output High Voltage
4.0
V
ISOURCE = 200 μA, AVDD = 5 V
POWER REQUIREMENTS
AVDD–AGND Voltage
4.75
5.25
V
DVDD–DGND Voltage
4.75
5.25
V
2.70
3.60
V
AVDD Current (Normal Mode)
13.5
15.9
mA
AVDD = 5 V
DVDD Current (Normal Mode)14
2.8
3.1
mA
DVDD = 5 V
DVDD Current (Normal Mode) 14
1.0
1.5
mA
DVDD = 3 V
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