参数资料
型号: AD7357WYRUZ-RL
厂商: ANALOG DEVICES INC
元件分类: ADC
英文描述: 2-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16
封装: ROHS COMPLIANT, MO-153AB, TSSOP-16
文件页数: 15/20页
文件大小: 469K
代理商: AD7357WYRUZ-RL
AD7357
Rev. A | Page 4 of 20
AD7357B/AD7357Y
AD7357WY
Parameter
Min
Typ
Max
Min
Typ
Max
Unit
Test Conditions/
Comments
REFERENCE INPUT/OUTPUT
VREF Input Voltage Range
2.048 + 0.1
VDD
2.048 + 0.1
VDD
V
VREF Input Current
0.3
0.45
0.3
0.45
mA
When in reference
overdrive mode
VREF Output Voltage
2.038
2.058
2.038
2.058
V
±2.048 V ± 0.5% max @
VDD = 2.5 V ± 5%
2.043
2.053
2.043
2.053
V
2.048 V ± 0.25% max @
VDD = 2.5 V ± 5% and 25°C
VREF Temperature Coefficient
6
20
6
20
ppm/°C
VREF Long Term Stability
100
ppm
For 1000 hours
VREF Thermal Hysteresis
50
ppm
VREF Noise
60
μV rms
VREF Output Impedance
1
Ω
LOGIC INPUTS
Input High Voltage, VINH
0.6 × VDRIVE
V
Input Low Voltage, VINL
0.3 × VDRIVE
V
Input Current, IIN
±1
μA
VIN = 0 V or VDRIVE
Input Capacitance, CIN
3
pF
LOGIC OUTPUTS
Output High Voltage, VOH
VDRIVE 0.2
V
Output Low Voltage, VOL
0.2
V
Floating-State Leakage Current
±1
μA
Floating-State Output Capacitance
5.5
pF
Output Coding
Straight binary
CONVERSION RATE
Conversion Time
t2 + 15.5
× tSCLK
t2 + 15.5
× tSCLK
ns
Track-and-Hold Acquisition Time2
33
ns
Full-scale step input
Throughput Rate
4.2
MSPS
POWER REQUIREMENTS
VDD
2.25
2.75
2.25
2.75
V
Nominal VDD = 2.5 V
VDRIVE3
2.25
3.6
2.25
3.6
V
ITOTAL4
Digital inputs = 0 V or VDRIVE
Normal Mode (Operational)
14
20
14
20
mA
Normal Mode (Static)
6
7.6
6
7.6
mA
SCLK on or off
Partial Power-Down Mode
3.5
4.5
3.5
4.5
mA
SCLK on or off
Full Power-Down Mode
5
40
5
40
μA
SCLK on or off
Power Dissipation
Normal Mode (Operational)
36
59
36
59
mW
Normal Mode (Static)
16
21
16
21
mW
SCLK on or off
Partial Power-Down Mode
9.5
11.5
9.5
11.5
mW
SCLK on or off
Full Power-Down Mode
16
110
16
110
μW
SCLK on or off
1 Temperature ranges are as follows: AD7357Y: 40°C to +125°C, AD7357B: 40°C to +85°C, AD7357WY: 40°C to +125°C.
2 See the Terminology section.
3 The interface is functional with VDRIVE voltages down to 1.8 V. In this condition, the SCLK speed may need to be slowed down. See the access and hold times in the
4 ITOTAL is the total current flowing in VDD and VDRIVE.
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