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參數資料
| 型號： | AD7888(中文) |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 2.7 V to 5.25 V, Micro Power, 8-Channel,125kSPS,12-Bit ADC(微功耗,125kSPS,8通道12位A/D轉換器) |
| 中文描述： | 2.7 V至5.25 V，微功耗，8通道，125kSPS的12位模數轉換器（微功耗，125kSPS的8通道12位的A / D轉換器） |
| 文件頁數： | 5/16頁 |
| 文件大?。?/td> | 326K |
| 代理商： | AD7888(中文) |
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V
DD
=+2.7V
á
+5.25V
￡
REF
IN
/REF
OUT
=2.5V
ía2
/
ú2ù×￡
f
SCLK
=2MHz
￡
T
A
=T
MIN
á
T
MAX
￡
A Version
1
B Version
1
Units
Parameter
Test Conditions/Comments
DYNAMIC PERFORMANCE
Signal to Noise + Distortion Ratio
2
70
(SNR)
Total Harmonic Distortion (THD)
Peak Harmonic or Spurious Noise
Intermodulation Distortion (IMD)
Second Order Terms
Third Order Terms
Channel-to-Channel Isolation
Full Power Bandwidth
71
dB min
Typically SNR is 72 dB
V
IN
= 10 kHz Sine Wave, f
SAMPLE
= 125 ksps
V
IN
= 10 kHz Sine Wave, f
SAMPLE
= 125 ksps
V
IN
= 10 kHz Sine Wave, f
SAMPLE
= 125 ksps
78
78
78
78
dB max
dB max
78
78
80
80
80
80
dB typ
dB typ
dB typ
MHz typ
fa = 9.983 kHz, fb = 10.05 kHz, f
SAMPLE
= 125 ksps
fa = 9.983 kHz, fb = 10.05 kHz, f
SAMPLE
= 125 ksps
V
= 25 kHz
@ 3 dB
DC ACCURACY
Resolution
Integral Nonlinearity
Differential Nonlinearity
Any Channel
12
2
2
12
1
1
Bits
LSB max
LSB max
Guaranteed No Missed Codes to 11 Bits (A Grade)
12 Bits (B Grade).
Total Unadjusted Error
Offset Error
Offset Error Match
Gain Error
Gain Error Match
3
3
3
3
3
3
3
3
3
3
LSB typ
LSB max
LSB max
LSB max
LSB max
ANALOG INPUT
Input Voltage Ranges
Leakage Current
Input Capacitance
0 to V
REF
1
38
4
0 to V
REF
1
38
4
Volts
A max
pF typ
pF typ
When in Track.
When in Hold.
REFERENCE INPUT/OUTPUT
REF
Input Voltage Range
Input Impedance
REF
OUT
Output Voltage
REF
OUT
Tempco
2.3/V
DD
10
2.45/2.55
50
2.3/V
DD
10
2.45/2.55
50
V min/max
kWtyp
V min/max
ppm/ C typ
Functional from 1.2 V
Very High Impedance if Internal Reference Disabled
LOGIC INPUTS
Input High Voltage, V
INH
2.4
2.1
0.8
10
10
2.4
2.1
0.8
10
10
V min
V min
V max
A max
pF max
V
DD
= 4.75 V to 5.25 V
V
DD
=2.7 V to 3.6V
V
DD
= 2.7 V to 5.25 V
Typically 10 nA, V
IN
= 0 V or V
DD
Input Low Voltage, V
INL
Input Current, I
IN
Input Capacitance, C
IN3
LOGIC OUTPUTS
Output High Voltage, V
OH
I
SOURCE
= 200 A
V
DD
= 2.7 V to 5.25 V
I
SINK
=200 A
V
DD
-0.5
0.4
10
V
DD
-0.5
0.4
10
10
V min
V max
A max
pF max
Output Low Voltage, V
Floating-State Leakage Current
Floating-State Output Capacitance
4
10
Output Coding
Straight (Natural) Binary
CONVERSION RATE
Throughput Time
16
16
SCLK cycles Conversion Time + Acquisition Time. 125ksps with 2MHz
clock
SCLK cycles
SCLK cycles 7.25 s (2MHz clock)
Track/Hold Acquisition Time
Conversion Time
1.5
14.5
1.5
14.5
相關PDF資料 |
PDF描述 |
|---|---|
| AD7888 | +2.7 V to +5.25 V, Micropower, 8-Channel, 125 kSPS, 12-Bit ADC in 16-Lead TSSOP |
| AD7888AR | +2.7 V to +5.25 V, Micropower, 8-Channel, 125 kSPS, 12-Bit ADC in 16-Lead TSSOP |
| AD7888ARU | +2.7 V to +5.25 V, Micropower, 8-Channel, 125 kSPS, 12-Bit ADC in 16-Lead TSSOP |
| AD7888BR | +2.7 V to +5.25 V, Micropower, 8-Channel, 125 kSPS, 12-Bit ADC in 16-Lead TSSOP |
| AD7888BRU | +2.7 V to +5.25 V, Micropower, 8-Channel, 125 kSPS, 12-Bit ADC in 16-Lead TSSOP |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AD7888AR | 制造商:Analog Devices 功能描述:ADC Single SAR 125ksps 12-bit Serial 16-Pin SOIC N 制造商:Analog Devices 功能描述:IC 12BIT ADC 8CH MICROPOWER 7888 |
| AD7888AR-REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 125ksps 12-bit Serial 16-Pin SOIC N T/R |
| AD7888AR-REEL7 | 制造商:Analog Devices 功能描述:ADC Single SAR 125ksps 12-bit Serial 16-Pin SOIC N T/R |
| AD7888ARU | 功能描述:IC ADC 12BIT 8CH 125KSPS 16TSSOP RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:12 采樣率（每秒）:300k 數據接口:并聯 轉換器數目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數目和類型:1 個單端，單極；1 個單端，雙極 |
| AD7888ARU-REEL | 功能描述:IC ADC 12BIT 8CH SRL 16-TSSOP RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:16 采樣率（每秒）:45k 數據接口:串行 轉換器數目:2 功率耗散（最大）:315mW 電壓電源:模擬和數字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數目和類型:2 個單端，單極 |
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