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AD7885AAP датащи(PDF) 2 Page - Analog Devices

номер детали AD7885AAP
подробное описание детали  LC2MOS 16-Bit, High Speed Sampling ADCs
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
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AD7885AAP датащи(HTML) 2 Page - Analog Devices

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REV. C
–2–
AD7884/AD7885/AD7885A–SPECIFICATIONS (V
DD = +5 V
5%, VSS = –5 V
5%, VREF+S
= +3 V; AGND = DGND = GND = 0 V; fSAMPLE = 166 kHz. All specifications TMIN to TMAX, unless otherwise noted.)
AB
Parameter
Version
1, 2, 3
Versions
1, 2, 3
Units
Test Conditions/Comments
DC ACCURACY
Resolution
16
16
Bits
Minimum Resolution for Which
No Missing Codes Are Guaranteed
16
16
Bits
Integral Nonlinearity
±0.0075
% FSR max
Typically 0.003% FSR
Positive Gain Error
±0.03
±0.03
% FSR typ
AD7885AN/BN: 0.1% typ
Positive Gain Error
±0.05
% FSR max
AD7885BN: 0.2% max
Gain TC
4
±2
±2
ppm FSR/
°C typ
Bipolar Zero Error
±0.05
±0.05
% FSR typ
Bipolar Zero Error
±0.15
% FSR max
Bipolar Zero TC
4
±8
±8
ppm FSR/
°C typ
Negative Gain Error
±0.03
±0.03
% FSR typ
AD7885AN/BN: 0.1% typ
Negative Gain Error
±0.05
% FSR max
AD7885BN: 0.2% max
Offset TC
4
±2
±2
ppm FSR/
°C typ
Noise
120
120
µV rms typ
78
µV rms typical in ±3 V Input Range
DYNAMIC PERFORMANCE
Signal to (Noise + Distortion) Ratio
84
84
dB min
Input Signal:
±5 V, 1 kHz Sine Wave, Typically 86 dB
82
82
dB typ
Input Signal:
±5 V, 12 kHz Sine Wave
Total Harmonic Distortion
–88
–88
dB max
Input Signal:
±5 V, 1 kHz Sine Wave
–84
–84
dB typ
Input Signal:
±5 V, 12 kHz Sine Wave
Peak Harmonic or Spurious Noise
–88
–88
dB max
Input Signal:
±5 V, 1 kHz Sine Wave
Intermodulation Distortion (IMD)
2nd Order Terms
–84
–84
dB typ
fA = 11.5 kHz, fB = 12 kHz, fSAMPLE = 166 kHz
3rd Order Terms
–84
–84
dB typ
fA = 11.5 kHz, fB = 12 kHz, fSAMPLE = 166 kHz
CONVERSION TIME
Conversion Time
5.3
5.3
µs max
Acquisition Time
2.5
2.5
µs max
Throughput Rate
166
166
kSPS max
There is an overlap between conversion and acquisition.
ANALOG INPUT
Voltage Range
±5
±5
Volts
±3
±3
Volts
Input Current
±4
±4
mA max
REFERENCE INPUT
Reference Input Current
±5
±5
mA max
VREF + S = +3 V
LOGIC INPUTS
Input High Voltage, VINH
2.4
2.4
V min
VDD = 5 V ± 5%
Input Low Voltage, VINL
0.8
0.8
V max
VDD = 5 V ± 5%
Input Current, IIN
±10
±10
µA max
Input Level = 0 V to VDD
Input Capacitance, CIN
4
10
10
pF max
LOGIC OUTPUTS
Output High Voltage, VOH
4.0
4.0
V min
ISOURCE = 40 µA
Output Low Voltage, VOL
0.4
0.4
V max
ISINK = 1.6 mA
DB15–DB0
Floating-State Leakage Current
10
10
µA max
Floating-State Output Capacitance
4
15
15
pF max
POWER REQUIREMENTS
VDD
+5
+5
V nom
±5% for Specified Performance
VSS
–5
–5
V nom
±5% for Specified Performance
IDD
35
35
mA max
Typically 25 mA
ISS
30
30
mA max
Typically 25 mA
Power Supply Rejection Ratio
∆Gain/∆V
DD
86
86
dB typ
∆Gain/∆V
SS
86
86
dB typ
Power Dissipation
325
325
mW max
Typically 250 mW
NOTES
1Temperature ranges are as follows: A, B Versions: –40
°C to +85°C.
2V
IN = ± 5 V.
3The AD7885AAP has the same specs as the AD7884AP. The AD7885ABP has the same specs as the AD7884BP.
4Sample tested to ensure compliance.
Specifications subject to change without notice.


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