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參數資料
| 型號： | AD7357YRUZ-RL |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 17/21頁 |
| 文件大小： | 0K |
| 描述： | IC ADC DUAL14BIT 4.2MSPS 16TSSOP |
| 設計資源： | DC-Coupled, Single-Ended-to-Differential Conversion Using AD8138 and AD7357 (CN0061) |
| 標準包裝： | 2,500 |
| 位數： | 14 |
| 采樣率（每秒）： | 4.2M |
| 數據接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉換器數目： | 2 |
| 功率耗散（最大）： | 59mW |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-TSSOP（0.173"，4.40mm 寬） |
| 供應商設備封裝： | 16-TSSOP |
| 包裝： | 帶卷 (TR) |
| 輸入數目和類型： | 2 個差分，雙極 |
AD7357
Rev. B | 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
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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