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MSC1201
MSC1202www.DataSheet4U.com
SBAS317B − APRIL 2004 − REVISED JANUARY 2005
Precision, Analog-to-Digital Converter (ADC)
and Digital-to-Analog Converter (DAC)
with 8051 Microcontroller and Flash Memory
FEATURES
ANALOG FEATURES
D MSC1201:
− 24 Bits No Missing Codes
− 22 Bits Effective Resolution At 10Hz
− Low Noise: 75nV
D MSC1202:
− 16 Bits No Missing Codes
− 16 Bits Effective Resolution At 200Hz
− Noise: 600nV
D PGA From 1 to 128
D Precision On-Chip Voltage Reference
D 6 Differential/Single-Ended Channels
D On-Chip Offset/Gain Calibration
D Offset Drift: 0.02ppm/°C
D Gain Drift: 0.5ppm/°C
D On-Chip Temperature Sensor
D Selectable Buffer Input
D Burnout Detect
D 8-Bit Current DAC
DIGITAL FEATURES
Microcontroller Core
D 8051-Compatible
D High-Speed Core:
− 4 Clocks per Instruction Cycle
D DC to 33MHz
D On-Chip Oscillator
D PLL with 32kHz Capability
D Single Instruction 121ns
D Dual Data Pointer
Memory
D 4kB or 8kB of Flash Memory
D Flash Memory Partitioning
D Endurance 1M Erase/Write Cycles,
100-Year Data Retention
D 256 Bytes Data SRAM
D In-System Serially Programmable
D Flash Memory Security
D 1kB Boot ROM
Peripheral Features
D 16 Digital I/O Pins
D Additional 32-Bit Accumulator
D Two 16-Bit Timer/Counters
D System Timers
D Programmable Watchdog Timer
D Full-Duplex USART
D Basic SPI
D Basic I2C
D Power Management Control
D Internal Clock Divider
D Idle Mode Current < 200mA
D Stop Mode Current < 100nA
D Digital Brownout Reset
D Analog Low-Voltage Detect
D 20 Interrupt Sources
GENERAL FEATURES
D Each Device Has Unique Serial Number
D Package: QFN-36
D Low Power: 3mW at 3.0V, 1MHz
D Industrial Temperature Range:
−40°C to +125°C
D Power Supply: 2.7V to 5.25V
APPLICATIONS
D Industrial Process Control
D Instrumentation
D Liquid/Gas Chromatography
D Blood Analysis
D Smart Transmitters
D Portable Instruments
D Weigh Scales
D Pressure Transducers
D Intelligent Sensors
D Portable Applications
D DAS Systems
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
SPI is a trademark of Motorola. I2C is a trademark of Philips Corporation. All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright 2004−2005, Texas Instruments Incorporated
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MSC1201
MSC1202
SBAS317B − APRIL 2004 − REVISED JANUARY 2005
www.ti.com
www.DataSheet4U.com
PACKAGE/ORDERING INFORMATION(1)
PRODUCT
FLASH
MEMORY
(BYTES)
ADC
RESOUTION
(BITS)
PACKAGE-LEAD
PACKAGE
DESIGNATOR
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
MARKING
MSC1201Y2
4k
24
QFN-36
RHH
−40°C to +125°C
MSC1201Y2
MSC1201Y3
8k
24k
QFN-36
RHH
−40°C to +125°C
MSC1201Y3
MSC1202Y2
4k
16
QFN-36
RHH
−40°C to +125°C
MSC1202Y2
MSC1202Y3
8k
16
QFN-36
RHH
−40°C to +125°C
MSC1202Y3
(1) For the most current package and ordering information, see the Package Option Addendum located at the end of this datasheet, or refer to our
web site at www.ti.com.
MSC1201Yx/MSC1202Yx FAMILY FEATURES
FEATURES(1)
Flash Program Memory (Bytes)
MSC120xY2(2)
Up to 4k
MSC120xY3(2)
Up to 8k
Flash Data Memory (Bytes)
Up to 2k
Up to 4k
Internal Scratchpad RAM (Bytes)
256
256
(1) All peripheral features are the same on all devices; the flash memory size
is the only difference.
(2) The last digit of the part number (N) represents the onboard flash size =
(2N)kBytes.
This integrated circuit can be damaged by ESD. Texas
Instruments recommends that all integrated circuits be
handled with appropriate precautions. Failure to observe
proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to
complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could
cause the device not to meet its published specifications.
ABSOLUTE MAXIMUM RATINGS(1)
Analog Inputs
Input current
Momentary
Continuous
Input voltage
Power Supply
DVDD to DGND
AVDD to AGND
AGND to DGND
VREF to AGND
Digital input voltage to DGND
Digital output voltage to DGND
Maximum junction temperature
Operating temperature range
Storage temperature range
Lead temperature (soldering, 10s)
Package power dissipation
Output current, all pins
Output pin short-circuit
Thermal Resistance
Digital Outputs
Output current
I/O source/sink current
Power pin maximum
Junction to ambient (qJA)
Junction to case (qJC)
Continuous
High K (2s 2p)
Low K (1s)
MSC1201Yx, MSC1202Yx
100
10
AGND − 0.3 to AVDD + 0.3
−0.3 to +6
−0.3 to +6
−0.3 to +0.3
−0.3 to AVDD + 0.3
−0.3 to DVDD + 0.3
−0.3 to DVDD + 0.3
+150
−40 to +125
−65 to +150
+235
(TJ Max − TAMBIENT)/qJA
200
10
21.9
103.7
21.9
100
100
300
UNITS
mA
mA
V
V
V
V
V
V
V
°C
°C
°C
°C
W
mA
s
°C/W
°C/W
°C/W
mA
mA
mA
(1) Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to absolute maximum conditions for
extended periods may affect device reliability.
2

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MSC1201
MSC1202
SBAS317B − APRIL w20w04w.DRaEVtaISSEhDeJeAtN4UU.AcRoYm2005
ELECTRICAL CHARACTERISTICS: AVDD = 5V
All specifications from TMIN to TMAX, DVDD = +2.7V to +5.25V, fMOD = 15.625kHz, PGA = 1, Buffer ON, fDATA = 10Hz, Bipolar, and
VREF (REF IN+) − (REF IN−) = +2.5V, unless otherwise noted.
MSC1201Yx, MSC1202Yx
PARAMETER
CONDITION
MIN
TYP
MAX
UNITS
Analog Input (AIN0-AIN5, AINCOM)
Analog Input Range
Full-Scale Input Voltage Range
Differential Input Impedance
Buffer OFF
Buffer ON
(In+) − (In−)
Buffer OFF
AGND − 0.1
AGND + 50mV
7/PGA(1)
AVDD + 0.1
AVDD − 1.5
±VREF/PGA
V
V
V
M
Input Current
Buffer ON
0.5 nA
Bandwidth
Fast Settling Filter
Sinc2 Filter
Sinc3 Filter
Programmable Gain Amplifier
−3dB
−3dB
−3dB
User-Selectable Gain Range
0.469 fDATA
0.318 fDATA
0.262 fDATA
1 128
Input Capacitance
Buffer ON
7 pF
Input Leakage Current
Multiplexer Channel OFF, T = +25°C
0.5 pA
Burnout Current Sources
Buffer ON
±2 µA
ADC Offset DAC
Offset DAC Range
Offset DAC Resolution
±VREF/(2 PGA)
8
V
Bits
Offset DAC Full-Scale Gain Error
±1.0
% of Range
Offset DAC Full-Scale Gain Error Drift
0.6 ppm/°C
System Performance
Resolution
MSC1201
MSC1202
24
16
Bits
Bits
ENOB
MSC1201
MSC1202
22 Bits
16 Bits
Output Noise
No Missing Codes
MSC1201, Sinc3 Filter, Decimation > 360
MSC1202, Sinc3 Filter
See Typical Characteristics
24
16
Bits
Bits
Integral Nonlinearity
End Point Fit, Differential Input
±0.0004
±0.0015
% of FSR
Offset Error
Offset Drift(2)
Gain Error(3)
Gain Error Drift(2)
After Calibration
Before Calibration
After Calibration
Before Calibration
1.5
0.02
0.005
0.5
ppm of FS
ppm of FS/°C
%
ppm/°C
System Gain Calibration Range
80 120 % of FS
System Offset Calibration Range
−50 50 % of FS
At DC
120 dB
Common-Mode Rejection
Normal-Mode Rejection
Power-Supply Rejection
fCM = 60Hz, fDATA = 10Hz
fCM = 50Hz, fDATA = 50Hz
fCM = 60Hz, fDATA = 60Hz
fCM = 50Hz, fDATA = 50Hz
fCM = 60Hz, fDATA = 60Hz
At DC, dB = −20log(VOUT/VDD)(4)
130 dB
120 dB
120 dB
100 dB
100 dB
100 dB
(1) The input impedance for PGA = 128 is the same as that for PGA = 64 (that is, 7M/64).
(2) Calibration can minimize these errors.
(3) The gain calibration cannot have a REF IN+ of more than AVDD −1.5V with Buffer ON. To calibrate gain, turn Buffer OFF.
(4) VOUT is change in digital result.
3

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MSC1201
MSC1202
SBAS317B − APRIL 2004 − REVISED JANUARY 2005
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ELECTRICAL CHARACTERISTICS: AVDD = 5V (continued)
All specifications from TMIN to TMAX, DVDD = +2.7V to +5.25V, fMOD = 15.625kHz, PGA = 1, Buffer ON, fDATA = 10Hz, Bipolar, and
VREF (REF IN+) − (REF IN−) = +2.5V, unless otherwise noted.
MSC1201Yx, MSC1202Yx
PARAMETER
CONDITION
MIN
TYP
MAX
UNITS
Voltage Reference Input
Reference Input Range
ADC VREF
VREF Common-Mode Rejection
Input Current
On-Chip Voltage Reference
REF IN+, REF IN−
VREF (REFIN+) − (REFIN−)
At DC
VREF = 2.5V, PGA = 1
AGND
0.1
AVDD(3)
V
2.5 AVDD V
115 dB
1 µA
Output Voltage
VREFH = 1 at +25°C
VREFH = 0
2.5
1.25
V
V
Short-Circuit Current Source
8 mA
Short-Circuit Current Sink
50 mA
Short-Circuit Duration
Sink or Source
Indefinite
Startup Time from Power ON
Temperature Sensor
CREFOUT = 0.1µF
8 ms
Temperature Sensor Voltage
T = +25°C
115 mV
Temperature Sensor Coefficient
345 µV/°C
IDAC Output Characteristics
IDAC Resolution
8 Bits
Full-Scale Output Current
1 mA
Maximum Short-Circuit Current Duration
Indefinite
Compliance Voltage
Analog Power-Supply Requirements
AVDD − 1.5
V
Analog Power-Supply Voltage
AVDD
4.75 5.0 5.25 V
Analog Current
BOR OFF, External Clock Mode, Analog OFF,
ALVD OFF, PDADC = PDIDAC = 1
<1
nA
PGA = 1, Buffer OFF
170 µA
Analog
Power-Supply
Current
ADC Current
(IADC)
PGA = 128, Buffer OFF
PGA = 1, Buffer ON
PGA = 128, Buffer ON
430 µA
230 µA
770 µA
VREF Supply Current
(IVREF)
ADC ON
IDAC Supply Current
(IIDAC)
IDAC = 00h
360 µA
230 µA
(1) The input impedance for PGA = 128 is the same as that for PGA = 64 (that is, 7M/64).
(2) Calibration can minimize these errors.
(3) The gain calibration cannot have a REF IN+ of more than AVDD −1.5V with Buffer ON. To calibrate gain, turn Buffer OFF.
(4) VOUT is change in digital result.
4

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MSC1201
MSC1202
SBAS317B − APRIL w20w04w.DRaEVtaISSEhDeJeAtN4UU.AcRoYm2005
ELECTRICAL CHARACTERISTICS: AVDD = 3V
All specifications from TMIN to TMAX, DVDD = +2.7V to +5.25V, fMOD = 15.625kHz, PGA = 1, Buffer ON, fDATA = 10Hz, Bipolar, and
VREF (REF IN+) − (REF IN−) = +1.25V, unless otherwise noted.
MSC1201Yx, MSC1202Yx
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Analog Input (AIN0-AIN5, AINCOM)
Analog Input Range
Full-Scale Input Voltage Range
Differential Input Impedance
Buffer OFF
Buffer ON
(In+) − (In−)
Buffer OFF
AGND − 0.1
AGND + 50mV
7/PGA(1)
AVDD + 0.1
AVDD − 1.5
±VREF/PGA
V
V
V
M
Input Current
Buffer ON
0.5 nA
Bandwidth
Fast Settling Filter
Sinc2 Filter
Sinc3 Filter
Programmable Gain Amplifier
−3dB
−3dB
−3dB
User-Selectable Gain Range
0.469 fDATA
0.318 fDATA
0.262 fDATA
1 128
Input Capacitance
Buffer ON
7 pF
Input Leakage Current
Multiplexer Channel Off, T = +25°C
0.5 pA
Burnout Current Sources
Buffer ON
±2 µA
ADC Offset DAC
Offset DAC Range
Offset DAC Resolution
±VREF/(2 PGA)
8
V
Bits
Offset DAC Full-Scale Gain Error
±1.5
% of Range
Offset DAC Full-Scale Gain Error Drift
0.6 ppm/°C
System Performance
Resolution
MSC1201
MSC1202
24
16
Bits
Bits
ENOB
MSC1201
MSC1202
22 Bits
16 Bits
Output Noise
No Missing Codes
MSC1201, Sinc3 Filter, Decimation > 360
MSC1202, Sinc3 Filter
See Typical Characteristics
24
16
Bits
Bits
Integral Nonlinearity
End Point Fit, Differential Input
±0.0004
±0.0015
% of FSR
Offset Error
Offset Drift(2)
Gain Error(3)
Gain Error Drift(2)
After Calibration
Before Calibration
After Calibration
Before Calibration
1.3
0.02
0.005
0.5
ppm of FS
ppm of FS/°C
%
ppm/°C
System Gain Calibration Range
80 120 % of FS
System Offset Calibration Range
−50 50 % of FS
At DC
130 dB
Common-Mode Rejection
Normal-Mode Rejection
Power-Supply Rejection
fCM = 60Hz, fDATA = 10Hz
fCM = 50Hz, fDATA = 50Hz
fCM = 60Hz, fDATA = 60Hz
fSIG = 50Hz, fDATA = 50Hz
fSIG = 60Hz, fDATA = 60Hz
At DC, dB = −20log(VOUT/VDD)(4)
130 dB
120 dB
120 dB
100 dB
100 dB
88 dB
(1) The input impedance for PGA = 128 is the same as that for PGA = 64 (that is, 7M/64).
(2) Calibration can minimize these errors.
(3) The gain calibration cannot have a REF IN+ of more than AVDD −1.5V with Buffer ON. To calibrate gain, turn Buffer OFF.
(4) VOUT is change in digital result.
5