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부품번호 | MAX11150 기능 |
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기능 | SAR ADC | ||
제조업체 | Maxim Integrated | ||
로고 | |||
전체 26 페이지수
MAX11150
18-Bit, 500ksps, +5V SAR ADC with
Internal Reference in µMAX
General Description
The MAX11150 is an 18-bit, 500ksps, SAR ADC offering
excellent AC and DC performance with unipolar input
range, internal reference, and small size. The MAX11150
measures a +5V (0 to 5V) input range and can operate
with single 5V supply. The MAX11150 integrates a low
drift reference with internal buffer, saving the cost and
space of an external reference.
This ADC achieves 93.0dB SNR and -101.2dB THD. The
MAX11150 guarantees 18-bit no-missing codes and ±3.7
LSB INL (typ).
The MAX11150 communicates using an SPI-compatible
serial interface at 2.3V, 3V, 3.3V, or 5V logic. The serial
interface can be used to daisy-chain multiple ADCs for mul-
tichannel applications and provides a busy indicator option
for simplified system synchronization and timing.
The MAX11150 is offered in a 10-pin, 3mm x 5mm,
µMAXM package and is specified over the -40°C to +85°C
temperature range.
Applications
●● Industrial Process Control
●● Data Acquisition Systems
●● Medical Instrumentation
●● Automatic Test Equipment
Selector Guide and Ordering Information appear at end of
data sheet.
Typical Operating Circuit
VDD
(5V)
1µF
VOVDD
(2.3V TO 5V)
1µF
MAX9632
0 TO +5V
10Ω
4.7nF
AIN+
AIN-
REF
10µF
18-BIT ADC
MAX11150
INTERFACE
AND
CONTROL
SCLK
DIN
SDO
CNVST
REF INTERNAL
BUF REFERENCE
GND
HOST
CONTROLLER
Benefits and Features
●● High DC/AC Accuracy Improves Measurement
Quality
• 18-Bit Resolution with No Missing Codes
• 500ksps Throughput Rates Without Pipeline Delay/
Latency
• 93dB SNR and -101.2dB THD at 10kHz
• 1.9 LSBRMS Transition Noise
• ±0.5 LSB DNL (typ) and ±3.7 LSB INL (typ)
●● Highly Integrated ADC Saves Cost and Space
• ±7ppm/°C Internal Reference
• Internal Reference Buffer
●● Wide Supply Range and Low Power Simplify Power-
Supply Design
• 5V Analog Supply
• 2.3V to 5V Digital Supply
• 36.2mW Power Consumption at 500ksps
• 10μA in Shutdown Mode
●● Multi-Industry Standard Serial Interface and Small
Package Reduces Size
• SPI/QSPI™/MICROWIREM/DSP-Compatible
Serial Interface
• 3mm x 5mm Tiny 10-Pin µMAX Package
µMAX is a 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
18-BIT
500ksps 500ksps
—
MAX11167 MAX11166 MAX11156
MAX11169 MAX11168 MAX11158
—
MAX11161 MAX11160 MAX11150
MAX11165 MAX11164 MAX11154
MAX11262 MAX11163 MAX11162 MAX11152
19-7522; Rev 0; 2/15
MAX11150
18-Bit, 500ksps, +5V SAR ADC with
Internal Reference in µMAX
Electrical Characteristics (continued)
(VDD = 4.75V to 5.25V, VOVDD = 2.3V to 5.25V, fSAMPLE = 500ksps, TA = TMIN to TMAX, unless otherwise noted. Typical values are
at TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
DIGITAL INPUTS (SDI, SCLK, CNVST)
Input Voltage High
VIH
CONDITIONS
Input Voltage Low
VIL
Input Hysteresis
Input Capacitance
Input Current
DIGITAL OUTPUT (SDO)
Output Voltage High
Output Voltage Low
Three-State Leakage Current
Three-State Output Capacitance
TIMING (Note 8)
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
VHYS
CIN
IIN
VIN = 0V or VOVDD
VOH
VOL
ISOURCE = 2mA
ISINK = 2mA
tCYC
tCONV
tACQ
tCNVPW
tSCLK
tSCLK
tSCLKL
tSCLKH
tDSDO
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
MIN TYP MAX UNITS
0.7 x
VOVDD
-10
±0.05 x
VOVDD
10
0.3 x
VOVDD
+10
V
V
V
pF
µA
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
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Maxim Integrated │ 4
4페이지 MAX11150
18-Bit, 500ksps, +5V SAR ADC with
Internal Reference in µMAX
Typical Operating Characteristics (continued)
(VDD = 5.0V, VOVDD = 3.3V, fSAMPLE = 500ksps, TA = +25NC, unless otherwise noted.)
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
4.75
MAX DNL
MIN DNL
DNL vs. VDD SUPPLY VOLTAGE
toc07
AVERAGE OF 128 DEVICES
4.85 4.95 5.05 5.15 5.25
VDD (V)
OUTPUT NOISE HISTOGRAM
NO AVERAGE
toc09
8000
SINGLE DEVICE
STDEV = 1.9 LSB
6000
4000
2000
0
OUTPUT CODE (DECIMAL)
8
6
4
2
0
-2
-4
-6
-8
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)
14000
12000
10000
8000
6000
4000
2000
0
OUTPUT NOISE HISTOGRAM WITH
4-SAMPLE AVERAGE
toc10
SINGLE DEVICE
STEDV = 1.0 LSB
OUTPUT CODE (DECIMAL)
INTERNAL REFERENCE VOLTAGE (REF PIN)
vs. TEMPERATURE
4.104
15 DEVICES
4.102
4.100
4.098
4.096
4.094
4.092
4.090
-40 -15 10 35 60
TEMPERATURE (°C)
toc11
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
85
INITIAL ERROR VOLTAGE ON REF PIN
60
303 DEVICES
MEAN = 4096.0mV
50 STDEV = 1.2mV
STDEV = 282ppm
40
30
20
10
0
REF PIN VOLTAGE (V)
toc12
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Maxim Integrated │ 7
7페이지 | |||
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부품번호 | 상세설명 및 기능 | 제조사 |
MAX1115 | Single-Supply / Low-Power / Serial 8-Bit ADCs | Maxim Integrated |
MAX11150 | SAR ADC | Maxim Integrated |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |