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參數(shù)資料
| 型號(hào)： | AD7888 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | +2.7 V to +5.25 V, Micropower, 8-Channel, 125 kSPS, 12-Bit ADC in 16-Lead TSSOP |
| 中文描述： | 2.7 V至5.25 V，微功耗，8通道，125 kSPS的，12位ADC的16引腳TSSOP |
| 文件頁(yè)數(shù)： | 2/16頁(yè) |
| 文件大小： | 164K |
| 代理商： | AD7888 |
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REV. 0
–2–
AD7888–SPECIFICATIONS
(V
DD
= +2.7 V to +5.25 V, REFIN/REFOUT = +2.5 V External/Internal Reference unless
otherwise noted; f
SCLK
= 2 MHz (V
DD
= +2.7 V to +5.25 V); T
A
= T
MIN
to T
MAX
, unless otherwise noted)
Parameter
A Version
1
B Version
1
Units
Test Conditions/Comments
DYNAMIC PERFORMANCE
Signal to Noise + Distortion Ratio
2, 3
(SNR)
Total Harmonic Distortion
2
(THD)
Peak Harmonic or Spurious Noise
2
Intermodulation Distortion
2
(IMD)
Second Order Terms
Third Order Terms
Channel-to-Channel Isolation
2
Full Power Bandwidth
71
–80
–80
71
–80
–80
dB typ
dB typ
dB typ
f
IN
= 10 kHz Sine Wave, f
SAMPLE
= 125 kSPS
f
IN
= 10 kHz Sine Wave, f
SAMPLE
= 125 kSPS
f
IN
= 10 kHz Sine Wave, f
SAMPLE
= 125 kSPS
–78
–78
–80
2.5
–78
–78
–80
2.5
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
f
IN
= 25 kHz
@ 3 dB
DC ACCURACY
Resolution
Integral Nonlinearity
2
Differential Nonlinearity
2
Any Channel
12
±
2
±
2
12
±
1
±
1
Bits
LSB max
LSB max
Guaranteed No Missed Codes to 11 Bits (A Grade)
Guaranteed No Missed Codes to 12 Bits (B Grade)
V
DD
= 4.75 V to 5.25 V (Typically
±
3 LSB)
V
DD
= 2.7 V to 3.6 V (Typically
±
2 LSB)
Offset Error
±
6
±
4.5
2
±
2
2
±
6
±
4.5
2
±
2
2
LSB max
LSB max
LSB typ
LSB max
LSB max
Offset Error Match
2
Gain Error
2
Gain Error Match
2
Typically 30 LSB with Internal Reference
ANALOG INPUT
Input Voltage Ranges
Leakage Current
Input Capacitance
0 to V
REF
±
1
38
4
0 to V
REF
±
1
38
4
Volts
μ
A max
pF typ
pF typ
When in Track
When in Hold
REFERENCE INPUT/OUTPUT
REFIN Input Voltage Range
Input Impedance
REFOUT Output Voltage
REFOUT Tempco
2.5/V
DD
5
2.45/2.55
±
50
2.5/V
DD
5
2.45/2.55
±
50
V min/max
k
typ
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
μ
A max
pF max
V
DD
= +4.75 V to +5.25 V
V
DD
= +2.7 V to +3.6 V
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
IN4
LOGIC OUTPUTS
Output High Voltage, V
OH
I
SOURCE
= 200
μ
A
V
DD
= +2.7 V to +5.25 V
I
SINK
= 200
μ
A
V
DD
–
0.5
0.4
±
10
10
Straight (Natural) Binary
V
DD
–
0.5
0.4
±
10
10
V min
V max
μ
A max
pF max
Output Low Voltage, V
OL
Floating-State Leakage Current
Floating-State Output Capacitance
5
Output Coding
CONVERSION RATE
Throughput Time
16
16
SCLK Cycles
Conversion Time + Acquisition Time. 125 kSPS with
2 MHz Clock
Track/Hold Acquisition Time
2
Conversion Time
1.5
14.5
1.5
14.5
SCLK Cycles
SCLK Cycles
7.25
μ
s (2 MHz Clock)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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 |
| AD7889 | 12-Bit 600 kSPS ADC(單電源600kSPS12位A/D轉(zhuǎn)換器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)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(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)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(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個(gè)單端，單極；1 個(gè)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(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)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(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個(gè)單端，單極 |
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