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MAX11262 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 MAX11262
기능 SAR ADC
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MAX11262 데이터시트, 핀배열, 회로
EVALUATION KIT AVAILABLE
MAX11262
14-Bit, 500ksps, +5V Unipolar Input,
SAR ADC, in Tiny 10-Pin µMAX
General Description
The MAX11262 is a 14-bit, 500ksps, +5V unipolar pseu-
do-differential input SAR ADC offering excellent AC and
DC performance in a small standard package.
This ADC typically achieves 85.4dB SNR, -102dB THD,
and ±0.2 LSB INL (typ), ±0.12 LSB DNL (typ). The
MAX11262 guarantees 14-bit no-missing codes.
The MAX11262 communicates using an SPI-compatible
serial interface at 2.3V, 3.3V, or 5V logic.
The serial interface can be used to daisy-chain multiple
ADCs for multichannel applications and provides a busy
indicator option for simplified system synchronization and
timing.
The MAX11262 is offered in a 10-pin, 3mm x 5mm,
µMAXM package and is specified over the -40NC to +85NC
temperature range.
Applications
Industrial Process Control
Medical Instrumentation
Test and Measurements
Automatic Test Equipment
Narrowband Receivers
Selector Guide and Ordering Information appear at end of
data sheet.
Typical Operating Circuit
VDD
(5V)
1µF
VOVDD
(2.3V TO 5V)
1µF
0 TO +5V
MAX9632
10
4.7nF, C0G
Ceramic
AIN+
AIN-
REF
REF
10µF
14-BIT ADC
INTERFACE AND CONTROL
SCLK
SDI
SDO
CNVST
HOST
CONTROLLER
MAX11262
GND
Benefits and Features
High DC/AC Accuracy Improves Measurement
Quality
• 14-Bit Resolution with No Missing Codes
• 500ksps Throughput Rates Without Pipeline
Delay/Latency
• 85.4dB SNR and -102dB THD at 10kHz
• 0.1 LSBRMS Input-Referred Noise
• ±0.12 LSB DNL (typ) and ±0.2 LSB INL (typ)
Wide Supply Range and Low Power Simplify Power-
Supply Design
• 5V Analog Supply
• 2.3V to 5V Digital Supply
• 24mW Power Consumption at 500ksps
10μA in Shutdown Mode
Multi-Industry Standard Serial Interface and Small
Package Reduces Size
• SPI/QSPI™/MICROWIRE®/DSP-Compatible
Serial Interface
• 3mm x 5mm, Tiny 10-Pin µMAX Package
μMAX is registered trademark of Maxim Integrated Products, Inc.
QSPI is a trademark of Motorola, Inc.
MICROWIRE is a registered trademark of National
Semiconductor Corporation.
14-Bit to 18-Bit SAR ADC Family
±5V Input
Internal
Reference
0 to 5V
Input
Internal
Reference
0 to 5V
Input
External
Reference
14-BIT
500ksps
16-BIT
250ksps
16-BIT
500ksps
18-BIT
500ksps
MAX11167 MAX11166 MAX11156
MAX11169 MAX11168 MAX11158
MAX11161 MAX11160 MAX11150
MAX11165 MAX11164 MAX11154
MAX11262 MAX11163 MAX11162 MAX11152
19-7061; Rev 1; 1/15




MAX11262 pdf, 반도체, 판매, 대치품
MAX11262
14-Bit, 500ksps, +5V Unipolar Input,
SAR ADC, in Tiny 10-Pin µMAX
Electrical Characteristics (continued)
(VDD = 4.75V to 5.25V, VOVDD = 2.3V to 5.25V, fSAMPLE = 500ksps, VREF = 5V; TA = TMIN to TMAX, unless otherwise noted. Typical
values are at TA = +25NC.) (Note 2)
PARAMETER
DIGITAL OUTPUT (DOUT)
Output Voltage High
Output Voltage Low
Three-State Leakage Current
Three-State Output Capacitance
TIMING (Note 9)
Time Between Conversions
Conversion Time
Acquisition Time
CNVST Pulse Width
SCLK Period (CS Mode)
SCLK Period (Daisy-Chain Mode)
SCLK Low Time
SCLK High Time
SCLK Falling Edge to Data Valid
Delay
CNVST Low to DOUT D15 MSB
Valid (CS Mode)
CNVST High or SDI High or Last
SCLK Falling Edge to SDO High
Impedance
SYMBOL
CONDITIONS
VOH
VOL
ISOURCE = 2mA
ISINK = 2mA
tCYC
tCONV
tACQ
tCNVPW
tSCLK
tSCLK
tSCLKL
tSCLKH
tDSDO
tEN
CNVST rising to data available
tACQ = tCYC - tCONV
CS mode
VOVDD > 4.5V
VOVDD > 2.7V
VOVDD > 2.3V
VOVDD > 4.5V
VOVDD > 2.7V
VOVDD > 2.3V
VOVDD > 4.5V
VOVDD > 2.7V
VOVDD > 2.3V
VOVDD > 2.7V
VOVDD < 2.7V
tDIS CS mode
MIN TYP MAX UNITS
VOVDD - 0.4
V
0.4 V
-10 +10 µA
15 pF
2 µs
1.3 1.5 µs
0.5 µs
5 ns
14
20 ns
25
16
24 ns
30
6 ns
6 ns
12
18 ns
23
14
ns
18
20 ns
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MAX11262 전자부품, 판매, 대치품
MAX11262
14-Bit, 500ksps, +5V Unipolar Input,
SAR ADC, in Tiny 10-Pin µMAX
Typical Operating Characteristics (continued)
(VDD = 5V, VOVDD = 3.3V, fSAMPLE = 500ksps, VREF = 5V, TA = +25°C, unless otherwise noted.)
DNL vs. VDD SUPPLY VOLTAGE
toc07
0.5
MAX DNL
AVERAGE OF 128 DEVICES
MIN DNL
0.3
0.1
-0.1
-0.3
-0.5
4.75 4.85 4.95 5.05 5.15 5.25
VDD (V)
1.0
0.8
0.6
0.4
0.2
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
4.75
MAX INL
MIN INL
INL vs. VDD SUPPLY VOLTAGE
toc08
AVERAGE OF 128 DEVICES
4.85 4.95 5.05 5.15 5.25
VDD (V)
35000
30000
25000
20000
15000
10000
5000
0
0
OUTPUT NOISE HISTOGRAM WITH
INPUT CONNECTED TO 3mV SOURCE
toc09
32768
SINGLE DEVICE
00
000
OUTPUT CODE (DECIMAL)
0
-20
-40
-60
-80
-100
-120
-140
0
FFT PLOT
toc11
NSAMPLE = 4096
fIN = 10132Hz
VIN = -0.1dBFS
Single Device
SNR = 85.5dB
SINAD = 85.3dB
THD = -102dB
SFDR = 104dB
50 100 150 200 250
FREQUENCY (kHz)
35000
30000
25000
20000
15000
10000
5000
0
0
OUTPUT NOISE HISTOGRAM WITH
INPUT CONNECTED TO 4.996V SOURCE
toc10
32743
SINGLE DEVICE
0 11
14 0
0
OUTPUT CODE (DECIMAL)
0
NSAMPLE = 16384
fIN1 = 9674Hz
-20 VIN1 = -6.1dBFS
fIN2 = 10101Hz
VIN2 = -6.1dBFS
-40 Single Device
IMD = -119.4dBFS
-60
-80
-100
-120
-140
6.0 7.0 8.0
TWO TONES IMD
toc12
9.0 10.0 11.0 12.0 13.0 14.0
FREQUENCY (kHz)
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