參數(shù)資料
型號: MAX1258BETM+
廠商: Maxim Integrated Products
文件頁數(shù): 39/43頁
文件大?。?/td> 0K
描述: IC ADC/DAC 12BIT 48-TQFN
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 43
類型: ADC,DAC
分辨率(位): 12 b
采樣率(每秒): 225k
數(shù)據(jù)接口: 串行
電壓電源: 模擬和數(shù)字
電源電壓: 4.75 V ~ 5.25 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 48-WFQFN 裸露焊盤
供應商設(shè)備封裝: 48-TQFN-EP(7x7)
包裝: 管件
MAX1220/MAX1257/MAX1258
12-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
_______________________________________________________________________________________
5
ELECTRICAL CHARACTERISTICS (continued)
(VAVDD = VDVDD = 2.7V to 3.6V (MAX1257), external reference VREF = 2.5V (MAX1257), VAVDD = 4.75V to 5.25V, VDVDD = 2.7V to VAVDD
(MAX1220/MAX1258), external reference VREF = 4.096V (MAX1220/MAX1258), fCLK = 3.6MHz (50% duty cycle), TA = -40°C to +85°C,
unless otherwise noted. Typical values are at VAVDD = VDVDD = 3V (MAX1257), VAVDD = VDVDD = 5V (MAX1220/MAX1258), TA = +25°C.
Outputs are unloaded, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DYNAMIC PERFORMANCE (Notes 5, 13)
Output-Voltage Slew Rate
SR
Positive and negative
3
V/s
Output-Voltage Settling Time
tS
To 1 LSB, 400 - C00 hex (Note 7)
2
5
s
Digital Feedthrough
Code 0, all digital inputs from 0 to
VDVDD
0.5
nVs
Major Code Transition Glitch
Impulse
Between codes 2047 and 2048
4
nVs
From VREF
660
Output Noise (0.1Hz to 50MHz)
Using internal reference
720
VP-P
From VREF
260
Output Noise (0.1Hz to
500kHz)
Using internal reference
320
VP-P
DAC-to-DAC Transition
Crosstalk
0.5
nVs
INTERNAL REFERENCE
MAX1257
2.482
2.5
2.518
REF1 Output Voltage (Note 8)
MAX1220/MAX1258
4.066
4.096
4.126
V
REF1 Temperature Coefficient
TCREF
±30
ppm/°C
VREF = 2.5V
0.39
REF1 Short-Circuit Current
VREF = 4.096V
0.63
mA
EXTERNAL-REFERENCE INPUT
REF1 Input Voltage Range
VREF1
REF modes 01, 10, and 11 (Note 4)
0.7
VAVDD
V
REF1 Input Impedance
RREF1
70
100
130
k
DIGITAL INTERFACE
DIGITAL INPUTS (SCLK, DIN,
CS, CNVST, LDAC)
Input-Voltage High
VIH
VDVDD = 2.7V to 5.25V
2.4
V
VDVDD = 3.6V to 5.25V
0.8
Input-Voltage Low
VIL
VDVDD = 2.7V to 3.6V
0.6
V
Input Leakage Current
IL
±0.01
±10
A
Input Capacitance
CIN
15
pF
DIGITAL OUTPUT (DOUT) (Note 14)
Output-Voltage Low
VOL
ISINK = 2mA
0.4
V
Output-Voltage High
VOH
ISOURCE = 2mA
VDVDD -
0.5
V
Three-State Leakage Current
±10
A
Three-State Output
Capacitance
COUT
15
pF
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