AD7884/AD7885/AD7885A–SPECIFICATIONS (V DD = +5 V
參數(shù)資料
型號(hào)： AD7884BPZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 9/16頁(yè)
文件大?。?/td> 0K
描述： IC ADC 16BIT SAMPLING HS 44-PLCC
標(biāo)準(zhǔn)包裝： 1
位數(shù)： 16
采樣率（每秒）： 166k
數(shù)據(jù)接口： 并聯(lián)
轉(zhuǎn)換器數(shù)目： 2
功率耗散（最大）： 325mW
電壓電源： 雙 ±
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 44-LCC（J 形引線）
供應(yīng)商設(shè)備封裝： 44-PLCC（16.59x16.59）
包裝： 管件
輸入數(shù)目和類型： 1 個(gè)差分，雙極
REV. E
–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.)
JA
B
Parameter
Version
1, 2, 3
Version
1, 2, 3
Version
1, 2, 3
Unit
Test Conditions/Comments
DC ACCURACY
Resolution
16
Bits
Minimum Resolution for Which
No Missing Codes Are Guaranteed
16
Bits
Integral Nonlinearity
±0.0075
% FSR max
Typically 0.003% FSR
Positive Gain Error
±0.1
±0.03
% FSR typ
AD7885AQ/BQ: 0.1% typ
Positive Gain Error
±0.05
% FSR max
AD7885BQ: 0.2% max
Gain TC
4
±2
ppm FSR/
°C typ
Bipolar Zero Error
±0.05
% FSR typ
±0.15
% FSR max
Bipolar Zero TC
4
±8
ppm FSR/
°C typ
Negative Gain Error
±0.1
±0.03
% FSR typ
AD7885AQ/BQ: 0.1% typ
Negative Gain Error
±0.05
% FSR max
AD7885BQ: 0.2% max
Offset TC
4
±2
ppm FSR/
°C typ
Noise
120
V rms typ
78
V rms Typical in ±3 V Input Range
DYNAMIC PERFORMANCE
Signal-to-(Noise + Distortion) Ratio
82
84
dB min
Input Signal:
±5 V, 1 kHz Sine Wave, Typically 86 dB
82
dB typ
Input Signal:
±5 V, 12 kHz Sine Wave
Total Harmonic Distortion
–84
–88
dB max
Input Signal:
±5 V, 1 kHz Sine Wave
–84
dB typ
Input Signal:
±5 V, 12 kHz Sine Wave
Peak Harmonic or Spurious Noise
–88
dB max
Input Signal:
±5 V, 1 kHz Sine Wave
Intermodulation Distortion (IMD)
Second Order Terms
–84
dB typ
fA = 11.5 kHz, fB = 12 kHz, fSAMPLE = 166 kHz
Third Order Terms
–84
dB typ
fA = 11.5 kHz, fB = 12 kHz, fSAMPLE = 166 kHz
CONVERSION TIME
Conversion Time
5.3
s max
Acquisition Time
2.5
s max
Throughput Rate
166
kSPS max
There is an overlap between conversion and acquisition.
ANALOG INPUT
Voltage Range
±5
±5V
±3
±3V
Input Current
±4
mA max
REFERENCE INPUT
Reference Input Current
±5
mA max
VREF+S = 3 V
LOGIC INPUTS
Input High Voltage, VINH
2.4
V min
VDD = 5 V
± 5%
Input Low Voltage, VINL
0.8
V max
VDD = 5 V
± 5%
Input Current, IIN
±10
A max
Input Level = 0 V to VDD
Input Capacitance, CIN
4
10
pF max
LOGIC OUTPUTS
Output High Voltage, VOH
4.0
V min
ISOURCE = 200
A
Output Low Voltage, VOL
0.4
V max
ISINK = 1.6 mA
DB15–DB0
Floating-State Leakage Current
10
A max
Floating-State Output Capacitance
4
15
pF max
POWER REQUIREMENTS
VDD
555
V nom
±5% for Specified Performance
VSS
–5
V nom
±5% for Specified Performance
IDD
35
mA max
Typically 25 mA
ISS
30
mA max
Typically 25 mA; AD7885/AD7885A
33
mA max
Typically 25 mA; AD7884
Power Supply Rejection Ratio
Gain/V
DD
86
dB typ
Gain/V
SS
86
dB typ
Power Dissipation
325
mW max
Typically 250
mW
NOTES
1Temperature ranges are as follows: J, A, B Versions: –40
°C to +85°C.
2V
IN =
±5 V.
3The AD7885AAP has the same specifications as the AD7884AP. The AD7885ABP has the same specifications as the AD7884BP.
4Sample tested to ensure compliance.
Specifications subject to change without notice.
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