參數(shù)資料
型號： MAX1227
廠商： Maxim Integrated Products, Inc.
元件分類： ADC
英文描述： 12-Bit 300ksps ADCs with FIFO. Temp Sensor. Internal Reference
中文描述： 12位、300ksps ADC，帶有FIFO、溫度傳感器及內(nèi)置基準
文件頁數(shù)： 3/24頁
文件大?。?/td> 512K
代理商： MAX1227
M
12-Bit 300ksps ADCs with FIFO,
Temp Sensor, Internal Reference
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +2.7V to +3.6V, f
SAMPLE
= 300kHz, f
SCLK
= 4.8MHz (50% duty cycle), V
REF
= 2.5V, T
A
= T
MIN
to T
MAX
, unless otherwise
noted. Typical values are at T
A
= +25
°
C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
CONVERSION RATE
External reference
Internal reference (Note 3)
0.8
65
Power-Up Time
t
PU
μs
Acquisition Time
t
ACQ
0.6
μs
Internally clocked
Externally clocked (Note 4)
Externally clocked conversion
Data I/O
3.5
Conversion Time
t
CONV
2.7
0.1
μs
4.8
10
60
External Clock Frequency
f
SCLK
MHz
SCLK Duty Cycle
Aperture Delay
Aperture Jitter
ANALOG INPUT
40
%
ns
ps
30
<50
Unipolar
Bipolar (Note 5)
V
IN
= V
DD
During acquisition time (Note 6)
0
V
REF
V
RE F
/ 2
±1
Input Voltage Range
- V
RE F
/ 2
V
Input Leakage Current
Input Capacitance
INTERNAL TEMPERATURE SENSOR
±0.01
24
μA
pF
Grade A, T
A
= +25
°
C
Grade A, T
A
= -20
°
C to +85
°
C
Grade A, T
A
= T
MIN
to T
MAX
Grade B, T
A
= +25
°
C
Grade B, T
A
= T
MIN
to T
MAX
±0.3
±0.5
±0.75
±0.7
±1.2
0.4
1/8
0.3
±1
±1.5
Measurement Error (Note 7)
±2.5
°
C
Tem p er atur e M easur em ent N oi se
Temperature Resolution
Power-Supply Rejection
INTERNAL REFERENCE
REF Output Voltage
°
C
RMS
°
C
°
C/V
2.48
2.50
±8
±30
6.5
200
-70
2.52
V
Grade A
Grade B
REF Temperature Coefficient
TC
REF
p p m
°
C
Output Resistance
REF Output Noise
REF Power-Supply Rejection
EXTERNAL REFERENCE INPUT
REF- Input Voltage Range
REF+ Input Voltage Range
k
μV
RMS
dB
PSRR
V
REF-
V
REF+
0
500
mV
V
1.0
V
DD
+ 50mV
100
V
REF+
= 2.5V, f
SAMPLE
= 300ksps
V
REF+
= 2.5V, f
SAMPLE
= 0
40
±0.1
REF+ Input Current
I
REF+
±5
μA
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MAX1227ACEE+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1227ACEE-T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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