參數(shù)資料
型號(hào)： MAX1185
廠商： Maxim Integrated Products, Inc.
英文描述： Dual 10-Bit, 20Msps, +3V, Low-Power ADC with Internal Reference and Multiplexed Parallel Outputs
中文描述： 雙路、10位、20Msps、+3V、低功耗ADC，內(nèi)置電壓基準(zhǔn)及復(fù)用并行輸出
文件頁(yè)數(shù)： 2/20頁(yè)
文件大小： 495K
代理商： MAX1185
M
Dual 10-Bit, 20Msps, +3V, Low-Power ADC with
Internal Reference and Multiplexed Parallel Outputs
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
V
DD
, OV
DD
to GND ...............................................-0.3V to +3.6V
OGND to GND.......................................................-0.3V to +0.3V
INA+, INA-, INB+, INB- to GND ...............................-0.3V to V
DD
REFIN, REFOUT, REFP, REFN, COM,
CLK to GND............................................-0.3V to (V
DD
+ 0.3V)
OE
, PD, SLEEP, T/B, D9A/B
–
D0A/B,
A/B to OGND .......................................-0.3V to (OV
DD
+ 0.3V)
ELECTRICAL CHARACTERISTICS
(V
DD
= +3V, OV
DD
= +2.5V, 0.1μF and 1μF capacitors from REFP, REFN, and COM to GND; REFOUT connected to REFIN through a
10k
resistor, V
IN
= 2Vp-p (differential w.r.t. COM), C
L
= 10pF at digital outputs (Note 5), f
CLK
= 20MHz,
T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25
°
C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Continuous Power Dissipation (T
A
= +70
°
C)
48-Pin TQFP (derate 12.5mW/
°
C above +70
°
C).......1000mW
Operating Temperature Range ...........................-40
°
C to +85
°
C
Junction Temperature......................................................+150
°
C
Storage Temperature Range.............................-60
°
C to +150
°
C
Lead Temperature (soldering, 10s).................................+300
°
C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DC ACCURACY
Resolution
Integral Nonlinearity
Differential Nonlinearity
Offset Error
Gain Error
ANALOG INPUT
10
Bits
LSB
LSB
% FS
% FS
INL
DNL
f
IN
= 7.5MHz
f
IN
= 7.5MHz, no missing codes guaranteed
±
0.5
±
0.25
<
±
1
0
±
1.5
±
1.0
±
1.7
±
2
Differential Input Voltage
Range
V
DIFF
Differential or single-ended inputs
±
1.0
V
Common-Mode Input Voltage
Range
V
CM
V
DD
/2
±
0.5
100
5
V
Input Resistance
Input Capacitance
CONVERSION RATE
Maximum Clock Frequency
R
IN
C
IN
Switched capacitor load
k
pF
f
CLK
20
MHz
CHA
CHB
5
Data Latency
5.5
Clock
Cycles
DYNAMIC CHARACTERISTICS
(f
CLK
= 20MHz, 4096-point FFT)
f
INA or B
= 7.5MHz, T
A
= +25
°
C
f
INA or B
= 12MHz
f
INA or B
= 7.5MHz, T
A
= +25
°
C
f
INA or B
= 12MHz
f
INA or B
= 7.5MHz, T
A
= +25
°
C
f
INA or B
= 12MHz
57.3
59.5
59.4
59.4
59.2
74
72
Signal-to-Noise Ratio
SNR
dB
57
Signal-to-Noise and Distortion
SINAD
dB
64
Spurious-Free Dynamic Range
SFDR
dBc
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