參數(shù)資料
型號: MAX1231BETI+T
廠商: Maxim Integrated Products
文件頁數(shù): 16/22頁
文件大?。?/td> 0K
描述: IC ADC 12BIT 300KSPS 28-TQFN
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 2,500
位數(shù): 12
采樣率(每秒): 300k
數(shù)據(jù)接口: MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 620µW
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 28-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 28-TQFN-EP(5x5)
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 16 個單端,單極;16 個單端,雙極;8 個差分,單極;8 個差分,雙極
MAX1227/MAX1229/MAX1231
12-Bit 300ksps ADCs with FIFO,
Temp Sensor, Internal Reference
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +2.7V to +3.6V, fSAMPLE = 300kHz, fSCLK = 4.8MHz (50% duty cycle), VREF = 2.5V, TA = TMIN to TMAX, unless otherwise
noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
CONVERSION RATE
External reference
0.8
Power-Up Time
tPU
Internal reference (Note 3)
65
s
Acquisition Time
tACQ
0.6
s
Internally clocked
3.5
Conversion Time
tCONV
Externally clocked (Note 4)
2.7
s
Externally clocked conversion
0.1
4.8
External Clock Frequency
fSCLK
Data I/O
10
MHz
SCLK Duty Cycle
40
60
%
Aperture Delay
30
ns
Aperture Jitter
<50
ps
ANALOG INPUT
Unipolar
0
VREF
Input Voltage Range
Bipolar (Note 5)
-VREF/2
VREF/2
V
Input Leakage Current
VIN = VDD
±0.01
±1
A
Input Capacitance
During acquisition time (Note 6)
24
pF
INTERNAL TEMPERATURE SENSOR
TA = +25
°C
±0.7
Measurement Error (Note 7)
TA = TMIN to TMAX
±1.2
±2.5
°C
Temperature Measurement Noise
0.4
°CRMS
Temperature Resolution
1/8
°C
Power-Supply Rejection
0.3
°C/V
INTERNAL REFERENCE
REF Output Voltage
2.48
2.50
2.52
V
REF Temperature Coefficient
TCREF
±30
ppm/°C
Output Resistance
6.5
k
REF Output Noise
200
VRMS
REF Power-Supply Rejection
PSRR
-70
dB
EXTERNAL REFERENCE INPUT
REF- Input Voltage Range
VREF-
0
500
mV
REF+ Input Voltage Range
VREF+
1.0
VDD + 50mV
V
VREF+ = 2.5V, fSAMPLE = 300ksps
40
100
REF+ Input Current
IREF+
VREF+ = 2.5V, fSAMPLE = 0
±0.1
±5
A
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