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AD7440BRTZ-R2 数据表(PDF) 5 Page - Analog Devices

部件名 AD7440BRTZ-R2
功能描述  Differential Input, 1 MSPS 10-Bit and 12-Bit ADCs in an 8-Lead SOT-23
PDF  27 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD7440BRTZ-R2 数据表(HTML) 5 Page - Analog Devices

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Data Sheet
AD7440/AD7450A
Rev. D | Page 5 of 27
AD7450A–SPECIFICATIONS
Table 2. VDD = 2.7 V to 3.6 V, fSCLK = 18 MHz, fS = 1 MSPS, VREF = 2.0 V; VDD = 4.75 V to 5.25 V, fSCLK = 18 MHz, fS = 1 MSPS,
VREF = 2.5 V; VCM1 = VREF; TA = TMIN to TMAX, unless otherwise noted. Temperature range for B Version: –40°C to +85°C.
Parameter
Test Conditions/Comments
B Version
Unit
DYNAMIC PERFORMANCE
f
IN = 100 kHz
Signal-to-(Noise + Distortion) (SINAD)2
70
dB min
Total Harmonic Distortion (THD)2
V
DD = 4.75 V to 5.25 V, –86 dB typ
–76
dB max
V
DD = 2.7 V to 3.6 V, –84 dB typ
–74
dB max
Peak Harmonic or Spurious Noise2
V
DD = 4.75 V to 5.25 V, –86 dB typ
–76
dB max
V
DD = 2.7 V to 3.6 V, –84 dB typ
–74
dB max
Intermodulation Distortion (IMD)2
fa = 90 kHz, fb = 110 kHz
Second-Order Terms
–89
dB typ
Third-Order Terms
–89
dB typ
Aperture Delay2
5
ns typ
Aperture Jitter2
50
ps typ
Full Power Bandwidth2, 3
@ –3 dB
20
MHz typ
@ –0.1 dB
2.5
MHz typ
DC ACCURACY
Resolution
12
Bits
Integral Nonlinearity (INL)2
±1
LSB max
Differential Nonlinearity (DNL)2
Guaranteed no missed codes to 12 bits
±0.95
LSB max
Zero-Code Error2
±6
LSB max
Positive Gain Error2
±2
LSB max
Negative Gain Error2
±2
LSB max
ANALOG INPUT
Full-Scale Input Span
2 × V
REF
4
V
IN+ – VIN–
V
Absolute Input Voltage
V
IN+
V
CM = VREF
V
CM ± VREF/2
V
V
IN–
V
CM = VREF
V
CM ± VREF/2
V
DC Leakage Current
±1
µA max
Input Capacitance
When in track-and-hold
30/10
pF typ
REFERENCE INPUT
V
REF Input Voltage
V
DD = 4.75 V to 5.25 V
(±1% tolerance for specified performance)
2.55
V
V
DD = 2.7 V to 3.6 V
(±1% tolerance for specified performance)
2.06
V
DC Leakage Current
±1
µA max
V
REF Input Capacitance
When in track-and-hold
10/30
pF typ
LOGIC INPUTS
Input High Voltage, V
INH
2.4
V min
Input Low Voltage, V
INL
0.8
V max
Input Current, I
IN
Typically 10 nA, V
IN = 0 V or VDD
±1
µA max
Input Capacitance, C
IN
7
10
pF max
LOGIC OUTPUTS
Output High Voltage, V
OH
V
DD = 4.75 V to 5.25 V; ISOURCE = 200 µA
2.8
V min
V
DD = 2.7 V to 3.6 V; ISOURCE = 200 µA
2.4
V min
Output Low Voltage, V
OL
I
SINK = 200 µA
0.4
V max
Floating-State Leakage Current
±1
µA max
Floating-State Output Capacitance7
10
pF max
Output Coding
Twos complement



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