Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°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.
ELECTRICAL CHARACTERISTICS
(V
AVDD
= +4.75V to +5.25V, V
DVDD
= +2.70V to +5.25V, V
AGNDS
= V
AGND
= V
DGND
= 0V, V
REFIO
= internal reference, C
RDC
= 4 x
33μF, C
REFIO
= 0.1μF, C
AVDD
= 4 x 0.1μF || 10μF, C
DVDD
= 3 x 0.1μF || 10μF; all digital inputs at DVDD or DGND, unless otherwise
noted, f
SAMPLE
= 250ksps. T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
STATIC PERFORMANCE (Note 1)
Resolution
N
MAX11044/MAX11045/MAX11046
MAX11054/MAX11055/MAX11056
MAX11044/MAX11045/MAX11046
Integral Nonlinearity
INL
MAX11054/MAX11055/MAX11056
MAX11044B/MAX11045B/MAX11046B
Differential Nonlinearity
DNL
MAX11044/MAX11045/MAX11046
MAX11054/MAX11055/MAX11056
MAX11044/MAX11044B/MAX11045/
MAX11045B/MAX11046/MAX11046B
MAX11054/MAX11055/MAX11056
Offset Error
Channel Offset Matching
Offset Temperature Coefficient
Gain Error
Positive Full-Scale Error
Negative Full-Scale Error
Positive Full-Scale Error Matching
Negative Full-Scale Error Matching
Channel Gain-Error Matching
Gain Temperature Coefficient
DYNAMIC PERFORMANCE
f
IN
=
10kHz,
full-scale
input
MAX11044/MAX11044B/
MAX11045/MAX11045B/
MAX11046/MAX11046B
MAX11054/MAX11055/
MAX11056
91
92.3
dB
84.5
85.2
Maxim Integrated
SYMBOL
CONDITIONS
MIN
16
14
-2
-0.8
-3
-1
-0.6
16
14
TYP
MAX
UNITS
Bits
±0.4
±0.13
±0.4
±0.15
+2
+0.8
+3
+1.2
+0.6
LSB
LSB
No Missing Codes
Bits
±0.001
±0.001
±0.8
±0.015
±0.015
±0.015
±0.01
±0.01
±0.015
±0.015
%FSR
%FSR
μV/°C
%FSR
%FSR
%FSR
%FSR
%FSR
%FSR
ppm/°C
Between all channels
±0.5
±0.01
Signal-to-Noise Ratio
SNR
2
MAX11044/MAX11044B/MAX11045/MAX11045B/
MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056
4-/6-/8-Channel, 16-/14-Bit,
Simultaneous-Sampling ADCs
ELECTRICAL CHARACTERISTICS (continued)
(V
AVDD
= +4.75V to +5.25V, V
DVDD
= +2.70V to +5.25V, V
AGNDS
= V
AGND
= V
DGND
= 0V, V
REFIO
= internal reference, C
RDC
= 4 x
33μF, C
REFIO
= 0.1μF, C
AVDD
= 4 x 0.1μF || 10μF, C
DVDD
= 3 x 0.1μF || 10μF; all digital inputs at DVDD or DGND, unless otherwise
noted, f
SAMPLE
= 250ksps. T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MAX11044/MAX11045/
MAX11046
MIN
90.5
84.5
87.5
98
95
90
TYP
92
85.2
MAX
UNITS
Signal-to-Noise and Distortion
Ratio
SINAD
f
IN
= 10kHz,
full-scale input
MAX11054/MAX11055/
MAX11056
MAX11044B/MAX11045B/
MAX11046B
MAX11044/MAX11045/
MAX11046
dB
104
104
dB
Spurious-Free Dynamic Range
SFDR
f
IN
= 10kHz,
full-scale input
MAX11054/MAX11055/
MAX11056
MAX11044B/MAX11045B/
MAX11046B
MAX11044/MAX11045/
MAX11046
-104
-104
-98
-95
-90
dB
Total Harmonic Distortion
THD
f
IN
= 10kHz,
full-scale input
MAX11054/MAX11055/
MAX11056
MAX11044B/MAX11045B/
MAX11046B
Channel-to-Channel Crosstalk
ANALOG INPUTS (CH0–CH7)
Input Voltage Range
Input Leakage Current
Input Capacitance
Input-Clamp Protection Current
TRACK AND HOLD
Throughput Rate
Acquisition Time
Full-Power Bandwidth
Aperture Delay
Aperture-Delay Matching
Aperture Jitter
INTERNAL REFERENCE
REFIO Voltage
REFIO Temperature Coefficient
EXTERNAL REFERENCE
Input Current
REF Voltage-Input Range
REF Input Capacitance
V
REF
V
REF
t
ACQ
f
IN
= 60Hz, full scale and ground on
adjacent channel (Note 2)
-126
-100
dB
(Note 3)
-1
15
Each input simultaneously
Per channel
-3dB point
-0.1dB point
-20
1
1
4
> 0.2
10
100
50
4.08
4.096
±5
-10
3.00
15
±1.22 x
V
REFIO
+1
+20
250
1000
V
μA
pF
mA
ksps
μs
MHz
ns
ps
ps
RMS
4.112
V
ppm/°C
+10
4.25
μA
V
pF
Maxim Integrated
3
MAX11044/MAX11044B/MAX11045/MAX11045B/
MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056
4-/6-/8-Channel, 16-/14-Bit,
Simultaneous-Sampling ADCs
ELECTRICAL CHARACTERISTICS (continued)
(V
AVDD
= +4.75V to +5.25V, V
DVDD
= +2.70V to +5.25V, V
AGNDS
= V
AGND
= V
DGND
= 0V, V
REFIO
= internal reference, C
RDC
= 4 x
33µF, C
REFIO
= 0.1µF, C
AVDD
= 4 x 0.1µF || 10µF, C
DVDD
= 3 x 0.1µF || 10µF; all digital inputs at DVDD or DGND, unless otherwise
noted, f
SAMPLE
= 250ksps. T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
Input Voltage High
Input Voltage Low
Input Capacitance
Input Current
DIGITAL OUTPUTS (DB0–DB15,
EOC)
Output Voltage High
Output Voltage Low
Three-State Leakage Current
Three-State Output Capacitance
Analog Supply Voltage
Digital Supply Voltage
AVDD
DVDD
MAX11046/MAX11046B/MAX11056,
V
AVDD
= 5V
Analog Supply Current
I
AVDD
MAX11045/MAX11045B/MAX11055,
V
AVDD
= 5V
MAX11044/MAX11044B/MAX11054,
V
AVDD
= 5V
MAX11046/MAX11046B/MAX11056,
V
DVDD
= 3.3V
Digital Supply Current (Note 9)
I
DVDD
MAX11045/MAX11045B/MAX11055,
V
DVDD
= 3.3V
MAX11044/MAX11044B/MAX11054,
V
DVDD
= 3.3V
Shutdown Current
I
DVDD
I
AVDD
VAVDD =
4.9V to
5.1V
(Note 5)
MAX11044/MAX11044B/
MAX11045/MAX11045B/
MAX11046/MAX11046B
MAX11054/MAX11055/
MAX11056
±1
LSB
±0.25
V
OH
V
OL
I
SOURCE
= 1.2mA
I
SINK
= 1mA
DB0–DB15, V
RD
≥
V
IH
or V
CS
≥
V
IH
DB0–DB15, V
RD
≥
V
IH
or V
CS
≥
V
IH
4.75
2.70
15
5.25
5.25
48
39
30
7.0
6.5
5.5
10
10
µA
mA
mA
V
DVDD
-
0.4
0.25
0.4
10
V
V
µA
pF
V
V
SYMBOL
V
IH
V
IL
C
IN
I
IN
V
IN
= 0V or V
DVDD
CONDITIONS
V
DVDD
= 2.7V to 5.25V
V
DVDD
= 2.7V to 5.25V
10
±10
MIN
2
0.8
TYP
MAX
UNITS
V
V
pF
µA
DIGITAL INPUTS (CR0–CR3,
RD, WR, CS,
CONVST)
Power-Supply Rejection
PSR
TIMING CHARACTERISTICS (Note 4)
CONVST Rise to
EOC
Acquisition Time
CS
Rise to CONVST Rise
CONVST Rise to
EOC
Rise
EOC
Fall to CONVST Fall
CONVST Low Time
4
t
CON
t
ACQ
t
Q
t
0
t
1
t
2
Conversion time (Note 6)
1
Sample quiet time (Note 6)
CONVST mode B0 = 0 only (Note 7)
CONVST mode B0 = 1 only
500
47
0
20
3
1000
140
µs
µs
ns
ns
ns
ns
Maxim Integrated
MAX11044/MAX11044B/MAX11045/MAX11045B/
MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056
4-/6-/8-Channel, 16-/14-Bit,
Simultaneous-Sampling ADCs
ELECTRICAL CHARACTERISTICS (continued)
(V
AVDD
= +4.75V to +5.25V, V
DVDD
= +2.70V to +5.25V, V
AGNDS
= V
AGND
= V
DGND
= 0V, V
REFIO
= internal reference, C
RDC
= 4 x
33μF, C
REFIO
= 0.1μF, C
AVDD
= 4 x 0.1μF || 10μF, C
DVDD
= 3 x 0.1μF || 10μF; all digital inputs at DVDD or DGND, unless otherwise
noted, f
SAMPLE
= 250ksps. T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
CS
Fall to
WR
Fall
WR
Low Time
CS
Rise to
WR
Rise
Input Data Setup Time
Input Data Hold Time
CS
Fall to
RD
Fall
RD
Low Time
RD
Rise to
CS
Rise
RD
High Time
RD
Fall to Data Valid
RD
Rise to Data Hold Time
SYMBOL
t
3
t
4
t
5
t
6
t
7
t
8
t
9
t
10
t
11
t
12
t
13
(Note 7)
5
CONDITIONS
MIN
0
20
0
10
1
0
30
0
10
35
TYP
MAX
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Note 1:
Note 2:
Note 3:
Note 4:
See the
Definitions
section at the end of the data sheet.
Tested with alternating channels modulated at full scale and ground.
See the
Input Range and Protection
section for more details.
C
LOAD
= 30pF on DB0–DB15 and EOC. Inputs (CH0–CH7) alternate between full scale and zero scale. f
CONV
= 250ksps.
All data is read out.
Note 5:
Defined as the change in positive full scale caused by a ±2% variation in the nominal supply voltage.
射频识别(Radio Frequency Identification，RFID)技术是一种利用无线射频通信实现的非接触式自动识别技术，与目前广泛采用的条形码技术相比，RFID具有容量大、识别距离远、穿透能力强、抗污性强等特点。RFID技术已经发展得比较成熟并获得了大规模商用，但超高频RFID技术相对滞后。本文分析了射频芯片nRF9E5的功能特性，并将其用于RFID系统中，设计了一套有源超高频(...[详细]
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