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參數(shù)資料
| 型號： | AD7891AP-2 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | LC2MOS 8-Channel, 12-Bit High Speed Data Acquisition System |
| 中文描述： | 8-CH 12-BIT PROPRIETARY METHOD ADC, SERIAL/PARALLEL ACCESS, PQCC44 |
| 封裝： | PLASTIC, MO-047AC, LCC-44 |
| 文件頁數(shù)： | 2/20頁 |
| 文件大小： | 173K |
| 代理商： | AD7891AP-2 |
–2–
REV. A
AD7891–SPECIFICATIONS
(V
DD
= +5 V
6
5%, AGND = DGND = 0 V, REF IN = +2.5 V. All Specifications T
MIN
to
T
MAX
unless otherwise noted.)
A
Version
1
B
Version
Y
Version
Parameter
Units
Test Conditions/Comments
DYNAMIC PERFORMANCE
2
Sample Rate = 454.5 kSPS
3
(AD7891-1),
500 kSPS
3
(AD7891-2). Any Channel
Signal to (Noise + Distortion) Ratio
4
@ +25
°
C
T
MIN
to T
MAX
Total Harmonic Distortion
4
Peak Harmonic or Spurious Noise
4
Intermodulation Distortion
4
2nd Order Terms
3rd Order Terms
Channel-to-Channel Isolation
4
70
70
–78
–80
70
70
–78
–80
70
70
–78
–80
dB min
dB min
dB max
dB max
fa = 9 kHz, fb = 9.5 kHz
–80
–80
–80
–80
–80
–80
–80
–80
–80
dB typ
dB typ
dB max
DC ACCURACY
Resolution
Minimum Resolution for Which
No Missing Codes are Guaranteed
Relative Accuracy
4
Differential Nonlinearity
4
Positive Full-Scale Error
4
Positive Full-Scale Error Match
4, 5
Unipolar Offset Error
Unipolar Offset Error Match
5
Negative Full-Scale Error
4
Negative Full-Scale Error Match
4, 5
Bipolar Zero Error
Bipolar Zero Error Match
5
Any Channel
12
12
12
Bits
12
±
1
±
1
±
3
0.6
±
3
0.1
±
3
0.6
±
4
0.2
12
±
0.75
±
1
±
3
0.6
±
3
0.1
±
3
0.6
±
4
0.2
12
±
1
±
1
±
3
0.6
±
3
0.1
±
3
0.6
±
4
0.2
Bits
LSB max
LSB max
LSB max
LSB typ
LSB max
LSB typ
LSB max
LSB typ
LSB max
LSB typ
1.5 LSB max
Input Ranges of 0 V to +2.5V, 0 V to +5V
1 LSB max
Input Ranges of
±
2.5V,
±
5V,
±
10V
1.5 LSB max
Input Ranges of
±
2.5V,
±
5V,
±
10V
1.5 LSB max
ANALOG INPUTS
AD7891-1 Input Voltage Range
±
5
±
10
7.5
15
±
5
±
10
7.5
15
±
5
±
10
7.5
15
Volts
Volts
k
min
k
min
Input Applied to Both V
INXA
and V
INXB
Input Applied to V
INXA
, V
INXB
= AGND
Input Range of
±
5V
Input Range of
±
10V
AD7891-1 V
INXA
Input Resistance
AD7891-1 V
INXA
Input Resistance
AD7891-2 Input Voltage Range
0 to +2.5
0 to +5
±
2.5
1.5
±
50
0 to +2.5
0 to +5
±
2.5
1.5
±
50
0 to +2.5
0 to +5
±
2.5
1.5
±
50
Volts
Volts
Volts
k
min
nA max
Input Applied to Both V
INXA
and V
INXB
Input Applied to V
INXA
, V
INXB
= AGND
Input Applied to V
INXA
, V
INXB
= REF IN
6
Input Ranges of
±
2.5V and 0 to +5V
Input Range of 0 V to +2.5V
AD7891-2 V
INXA
Input Resistance
AD7891-2 V
INXA
Input Current
REFERENCE INPUT/OUTPUT
REF IN Input Voltage Range
Input Impedance
Input Capacitance
5
REF OUT Output Voltage
REF OUT Error @ +25
°
C
T
MIN
to T
MAX
REF OUT Temperature Coefficient
REF OUT Output Impedance
2.375/2.625 2.375/2.625 2.375/2.625 V min/V max
1.6
1.6
10
10
2.5
2.5
±
10
±
10
±
20
±
20
25
25
5
5
2.5 V
±
5%
Resistor Connected to Internal Reference Node
1.6
10
2.5
±
10
±
20
25
5
k
min
pF max
Vnom
mV max
mV max
ppm/
°
C typ
k
nom
See REF IN Input Impedance
LOGIC INPUTS
Input High Voltage, V
INH
Input Low Voltage, V
INL
Input Current, I
INH
Input Capacitance,
5
C
IN
2.4
0.8
±
10
10
2.4
0.8
±
10
10
2.4
0.8
±
10
10
V min
V max
μ
A max
pF max
V
DD
= 5 V
±
5%
V
DD
= 5 V
±
5%
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| AD7891AP-2REEL | 功能描述:IC DAS 12BIT 8CH 44-PLCC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應商設備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| AD7891APZ-1 | 功能描述:IC DAS 12BIT 8CH 44-PLCC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應商設備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| AD7891APZ-1REEL | 功能描述:IC DAS 12BIT 8CH 44-PLCC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應商設備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
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