AD7884ABP Просмотр технического описания (PDF) - Analog Devices
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AD7884ABP Datasheet PDF : 16 Pages
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AD7884/AD7885/AD7885A–SPECIFICATIONS (VDD = 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.)
Parameter
J
A
B
Version1, 2, 3 Version1, 2, 3 Versions1, 2, 3 Unit
Test Conditions/Comments
DC ACCURACY
Resolution
Minimum Resolution for Which
No Missing Codes Are Guaranteed
Integral Nonlinearity
Positive Gain Error
Positive Gain Error
Gain TC4
Bipolar Zero Error
Bipolar Zero Error
Bipolar Zero TC4
Negative Gain Error
Negative Gain Error
Offset TC4
Noise
16
16
± 0.1
±2
± 0.05
±8
± 0.1
±2
120
16
16
± 0.03
±2
± 0.05
±8
± 0.03
±2
120
16
16
± 0.0075
± 0.03
± 0.05
±2
± 0.05
± 0.15
±8
± 0.03
± 0.05
±2
120
Bits
Bits
% FSR max
% FSR typ
% FSR max
ppm FSR/°C typ
% FSR typ
% FSR max
ppm FSR/°C typ
% FSR typ
% FSR max
ppm FSR/°C typ
µV rms typ
Typically 0.003% FSR
AD7885AN/BN: 0.1% typ
AD7885BN: 0.2% max
AD7885AN/BN: 0.1% typ
AD7885BN: 0.2% max
78 µV rms typical in ± 3 V Input Range
DYNAMIC PERFORMANCE
Signal to (Noise + Distortion) Ratio 82
84
84
82
82
82
Total Harmonic Distortion
–84
–88
–88
–84
–84
–84
Peak Harmonic or Spurious Noise –88
–88
–88
Intermodulation Distortion (IMD)
Second Order Terms
–84
–84
–84
Third Order Terms
–84
–84
–84
CONVERSION TIME
Conversion Time
Acquisition Time
Throughput Rate
5.3
5.3
5.3
2.5
2.5
2.5
166
166
166
dB min
dB typ
dB max
dB typ
dB max
dB typ
dB typ
µs max
µs max
kSPS max
Input Signal: ± 5 V, 1 kHz Sine Wave, Typically 86 dB
Input Signal: ± 5 V, 12 kHz Sine Wave
Input Signal: ± 5 V, 1 kHz Sine Wave
Input Signal: ± 5 V, 12 kHz Sine Wave
Input Signal: ± 5 V, 1 kHz Sine Wave
fA = 11.5 kHz, fB = 12 kHz, fSAMPLE = 166 kHz
fA = 11.5 kHz, fB = 12 kHz, fSAMPLE = 166 kHz
There is an overlap between conversion and acquisition.
ANALOG INPUT
Voltage Range
Input Current
±5
±5
±5
±3
±3
±3
±4
±4
±4
Volts
Volts
mA max
REFERENCE INPUT
Reference Input Current
±5
±5
±5
LOGIC INPUTS
Input High Voltage, VINH
Input Low Voltage, VINL
Input Current, IIN
Input Capacitance, CIN4
2.4
2.4
2.4
0.8
0.8
0.8
± 10
± 10
± 10
10
10
10
LOGIC OUTPUTS
Output High Voltage, VOH
Output Low Voltage, VOL
DB15–DB0
4.0
4.0
4.0
0.4
0.4
0.4
Floating-State Leakage Current 10
10
10
Floating-State Output Capacitance4 15
15
15
mA max
V min
V max
µA max
pF max
V min
V max
µA max
pF max
VREF+S = 3 V
VDD = 5 V ± 5%
VDD = 5 V ± 5%
Input Level = 0 V to VDD
ISOURCE = 40 µA
ISINK = 1.6 mA
POWER REQUIREMENTS
VDD
5
5
5
VSS
–5
–5
–5
IDD
35
35
35
ISS
30
30
30
Power Supply Rejection Ratio
∆Gain/∆VDD
∆Gain/∆VSS
86
86
86
86
86
86
Power Dissipation
325
325
325
V nom
V nom
mA max
mA max
dB typ
dB typ
mW max
± 5% for Specified Performance
± 5% for Specified Performance
Typically 25 mA
Typically 25 mA
Typically 250 mW
NOTES
1Temperature ranges are as follows: J, A, B Versions: –40°C to +85°C.
2VIN = ± 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.
–2–
REV. D
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