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參數資料
| 型號： | AD7858L* |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 3 V to 5 V Single Supply. 200 kSPS 8-Channel. 12-Bit Sampling ADC |
| 中文描述： | 3 V至5 V單電源。 200 kSPS的8通道。 12位采樣ADC |
| 文件頁數： | 2/32頁 |
| 文件大小： | 315K |
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P
arameter
A Version
1
B Version
1
Units
Test Conditions/Comments
DYNAMIC PERFORMANCE
Signal to Noise + Distortion Ratio
3
(SNR)
Total Harmonic Distortion (THD)
Peak Harmonic or Spurious Noise
Intermodulation Distortion (IMD)
Second Order Terms
Third Order Terms
Channel-to-Channel Isolation
70
71
dB min
Typically SNR is 72 dB
V
IN
= 10 kHz Sine Wave, f
SAMPLE
= 200 kHz (100 kHz)
V
IN
= 10 kHz Sine Wave, f
SAMPLE
= 200 kHz (100 kHz)
V
IN
= 10 kHz Sine Wave, f
SAMPLE
= 200 kHz (100 kHz)
–78
–78
–78
–78
dB max
dB max
–78
–78
–90
–80
–80
–90
dB typ
dB typ
dB typ
fa = 9.983 kHz, fb = 10.05 kHz, f
SAMPLE
= 200 kHz (100 kHz)
fa = 9.983 kHz, fb = 10.05 kHz, f
SAMPLE
= 200 kHz (100 kHz)
V
IN
= 25 kHz
DC ACCURACY
Resolution
Integral Nonlinearity
Any Channel
12
±
1
±
1
12
±
1
±
0.5
(
±
1)
Bits
LSB max
LSB max
LSB max
LSB max
LSB max
2.5 V External Reference V
DD
= 3 V, V
DD
= 5 V (B Grade Only)
5 V External Reference V
DD
= 5 V
(L Version, 5 V External Reference, V
DD
= 5 V)
(L Version)
Guaranteed No Missed Codes to 12 Bits. 2.5 V External
Reference V
DD
= 3 V, 5 V External Reference, V
DD
= 5 V
(
±
1)
±
1
Differential Nonlinearity
±
1
Total Unadjusted Error
Unipolar Offset Error
±
1
±
5
±
2.5
(
±
3)
(
±
1.5)
1.5
±
4
±
1.5
1
±
1
±
5
±
2.5
(
±
3)
(
±
1.5)
1.5
±
4
±
1.5
1
LSB typ
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
LSB max
Typically
±
2 LSBs
5 V External Reference, V
DD
= 5 V
(L Version)
(L Version, 5 V External Reference, V
DD
= 5 V)
Unipolar Offset Error Match
Positive Full-Scale Error
5 V External Reference, V
DD
= 5 V
Positive Full-Scale Error Match
ANALOG INPUT
Input Voltage Ranges
0 to V
REF
0 to V
REF
Volts
i.e., AIN(+) – AIN(–) = 0 to V
REF
, AIN(–) can be biased
up but AIN(+) cannot go below AIN(–)
Leakage Current
Input Capacitance
±
1
20
±
1
20
μ
A max
pF typ
REFERENCE INPUT/OUTPUT
REF
IN
Input Voltage Range
Input Impedance
REF
OUT
Output Voltage
REF
OUT
Tempco
2.3/V
DD
150
2.3/2.7
20
2.3/V
DD
150
2.3/2.7
20
V min/max
k
typ
V min/max
ppm/
°
C typ
Functional from 1.2 V
LOGIC INPUTS
Input High Voltage, V
INH
2.4
2.1
0.8
0.6
±
10
10
2.4
2.1
0.8
0.6
±
10
10
V min
V min
V max
V max
μ
A max
pF max
AV
DD
= DV
DD
= 4.5 V to 5.5 V
AV
DD
= DV
DD
= 3.0 V to 3.6 V
AV
DD
= DV
DD
= 4.5 V to 5.5 V
AV
DD
= DV
DD
= 3.0 V to 3.6 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
AV
DD
= DV
DD
= 4.5 V to 5.5 V
AV
DD
= DV
DD
= 3.0 V to 3.6 V
I
SINK
= 0.8 mA
4
2.4
0.4
±
10
10
Straight (Natural) Binary
4
2.4
0.4
±
10
10
V min
V min
V max
μ
A max
pF max
Output Low Voltage, V
OL
Floating-State Leakage Current
Floating-State Output Capacitance
4
Output Coding
CONVERSION RATE
Conversion Time
4.6 (18)
4.6
(10)
0.4 (1)
μ
s max
μ
s max
μ
s min
(L Versions Only, –40
°
C to +85
°
C, 1 MHz CLKIN)
(L Versions Only, 0
°
C to +70
°
C, 1.8 MHz CLKIN)
(L Versions Only)
Track/Hold Acquisition Time
0.4 (1)
REV. B
–2–
AD7858/AD7858L–SPECIFICATIONS
1, 2
Reference unless otherwise noted, f
CLKIN
= 4 MHz (1.8 MHz B Grade (0 C to +70 C), 1 MHz A and B Grades (–40 C to +85 C) for L Version); f
SAMPLE
=
200 kHz (AD7858), 100 kHz (AD7858L);
SLEEP
= Logic High; T
A
= T
MIN
to T
MAX
, unless otherwise noted.) Specifications in ( ) apply to the AD7858L.
(AV
DD
= DV
DD
= +3.0 V to +5.5 V, REF
IN
/REF
OUT
= 2.5 V External
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD7858LAN | 制造商:Analog Devices 功能描述: |
| AD7858LAN3 | 制造商:AD 制造商全稱:Analog Devices 功能描述:3 V to 5 V Single Supply, 200 kSPS 8-Channel, 12-Bit Sampling ADC |
| AD7858LANZ | 功能描述:IC ADC 12BIT 8CHAN SRL 24DIP RoHS:是 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 |
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