參數(shù)資料
型號： EVAL-AD7266EDZ
廠商： Analog Devices Inc
文件頁數(shù)： 25/29頁
文件大?。?/td> 0K
描述： BOARD EVAL FOR AD7266 A/D CONV
標(biāo)準(zhǔn)包裝： 1
ADC 的數(shù)量： 2
位數(shù)： 12
采樣率（每秒）： 2M
數(shù)據(jù)接口： SPI?、QSPI?、MICROWIRE? 和 DSP
輸入范圍： 0 ~ 5 V
在以下條件下的電源（標(biāo)準(zhǔn)）： 9mW @ 3V，27mW @ 5V
工作溫度： -40°C ~ 125°C
已用 IC / 零件： AD7266
已供物品： 板
AD7266
Rev. B | Page 4 of 28
Parameter
Specification
Unit
Test Conditions/Comments
DC Leakage Current
±1
μA max
Input Capacitance
45
pF typ
When in track
10
pF typ
When in hold
REFERENCE INPUT/OUTPUT
Reference Output Voltage8
2.5
V min/V max
±0.2% max @ 25°C
Long-Term Stability
150
ppm typ
For 1000 hours
Output Voltage Hysteresis2
50
ppm typ
Reference Input Voltage Range
0.1/VDD
V min/V max
DC Leakage Current
±2
μA max
External reference applied to Pin DCAPA/Pin DCAPB
Input Capacitance
25
pF typ
DCAPA, DCAPB Output Impedance
10
Ω typ
Reference Temperature Coefficient
20
ppm/°C max
10
ppm/°C typ
VREF Noise
20
μV rms typ
LOGIC INPUTS
Input High Voltage, VINH
2.8
V min
Input Low Voltage, VINL
0.4
V max
Input Current, IIN
±15
nA typ
VIN = 0 V or VDRIVE
Input Capacitance, CIN3
5
pF typ
LOGIC OUTPUTS
Output High Voltage, VOH
VDRIVE 0.2
V min
Output Low Voltage, VOL
0.4
V max
Floating State Leakage Current
±1
μA max
Floating State Output Capacitance3
7
pF typ
Output Coding
Straight (natural) binary
SGL/DIFF = 1 with 0 V to VREF range selected
Twos complement
SGL/DIFF = 0; SGL/DIFF = 1 with 0 V to 2 × VREF range
CONVERSION RATE
Conversion Time
14
SCLK cycles
437.5 ns with SCLK = 32 MHz
Track-and-Hold Acquisition Time3
90
ns max
Full-scale step input; VDD = 5 V
110
ns max
Full-scale step input; VDD = 3 V
Throughput Rate
2
MSPS max
POWER REQUIREMENTS
VDD
2.7/5.25
V min/V max
VDRIVE
2.7/5.25
V min/V max
IDD
Digital I/Ps = 0 V or VDRIVE
Normal Mode (Static)
2.3
mA max
VDD = 5.25 V
Operational, fS = 2 MSPS
6.4
mA max
VDD = 5.25 V; 5.7 mA typ
fS = 1.5 MSPS
4
mA max
VDD = 3.6 V; 3.4 mA typ
Partial Power-Down Mode
500
μA max
Static
Full Power-Down Mode (VDD)
1
μA max
TA = 40°C to +85°C
2.8
μA max
TA > 85°C to 125°C
Power Dissipation
Normal Mode (Operational)
33.6
mW max
VDD = 5.25 V
Partial Power-Down (Static)
2.625
mW max
VDD = 5.25 V
Full Power-Down (Static)
5.25
μW max
VDD = 5.25 V, TA = 40°C to +85°C
1 Temperature range is 40°C to +125°C.
3 Sample tested during initial release to ensure compliance.
4 Guaranteed no missed codes to 12 bits.
5 VIN or VIN+ must remain within GND/VDD.
6 VIN = 0 V for specified performance. For full input range on VIN pin, see Figure 28 and Figure 29.
7 For full common-mode range, see Figure 24 and Figure 25.
8 Relates to Pin DCAPA or Pin DCAPB.
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