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AD7266BCP 数据表(PDF) 3 Page - Analog Devices

部件名 AD7266BCP
功能描述  Differential Input, Dual 2 MSPS, 12-Bit, 3-Channel SAR ADC
Download  17 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD7266BCP 数据表(HTML) 3 Page - Analog Devices

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Preliminary Technical Data
AD7266
AD7266—SPECIFICATIONS1
Table 1. TA = TMIN to TMAX, VDD = 2.7 V to 3.3 V, fSCLK = 25 MHz, fS = 1.5 MSPS, VDRIVE = 2.7 V to 3.3 V; VDD = 4.75 V to 5.25 V,
fSCLK = 32 MHz, fS = 2 MSPS, VDRIVE = 2.7 V to 5.25 V; Reference = 2.5 V ± 1%, unless otherwise noted
Parameter
Specification
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
Signal-to-Noise + Distortion Ratio (SINAD)2
70
dB min
fIN = 100 kHz sine wave
Total Harmonic Distortion (THD)2
–75
dB max
fIN = 100 kHz sine wave
Spurious Free Dynamic Range (SFDR)2
–76
dB max
fIN = 100 kHz sine wave
Intermodulation Distortion (IMD)2
Second Order Terms
–88
dB typ
Third Order Terms
–88
dB typ
Channel to Channel Isolation
–88
dB typ
SAMPLE AND HOLD
Aperture Delay3
10
ns max
Aperture Jitter3
50
ps typ
Aperture Delay Matching3
200
ps max
Full Power Bandwidth
20
MHz typ
@ 3 dB
2.5
MHz typ
@0.1 dB
DC ACCURACY
Resolution
12
Bits
Integral Nonlinearity2
±1
LSB max
±0.5 LSB typ; differential configuration
±1.5
LSB max
±0.5 LSB typ; single-ended configuration
Differential Nonlinearity2
±0.95
LSB max
Guaranteed no missed codes to 12 bits
0 V to VREF Input Range
Straight binary output coding
Offset Error
±3
LSB max
Offset Error Match
±0.5
LSB typ
Gain Error
±2
LSB max
Gain Error Match
±0.6
LSB typ
0 V to 2 × VREF Input Range
Twos complement output coding
Positive Gain Error
±2
LSB max
Zero Code Error
±3
LSB max
Zero Code Error Match
±1
LSB typ
Negative Gain Error
±1
LSB max
ANALOG INPUT
Input Voltage Ranges
0 V to VREF
V
RANGE pin low upon CS falling edge
0 V to 2 x VREF
V
RANGE pin high upon CS falling edge
DC Leakage Current
±500
nA max
TA = –40°C to +85°C
±1
µA max
85°C < TA ≤ 125°C
Input Capactiance
30
pF typ
When in track
10
pF typ
When in hold
REFERENCE INPUT/OUTPUT
Reference Output Voltage4
2.49/2.51
V min/V max
Reference Input Voltage Range
0.1/2.5
V min/V max
See Typical Performance plots
DC Leakage Current
±30
µA max
VREF pin
±160
µA max
DCAPA, DCAPB pins
Input Capactiance
20
pF typ
VREF Output Impedance5
25
Ω typ
Reference Temperature Coefficient
25
ppm/°C max
10
ppm/°C typ
LOGIC INPUTS
Input High Voltage, VINH
2.8
V min
Input Low Voltage, VINL
0.4
V max
Input Current, IIN
±1
µA max
Typically 15 nA, VIN = 0 V or VDRIVE
Input Capacitance, CIN3
10
pF max
Rev. PrG | Page 3 of 17


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