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 I
2
C
D
Power Management Control
D
Internal Clock Divider
D
Idle Mode Current < 200
m
A
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
MSC1201
MSC1202
SBAS317B - APRIL 2004 - REVISED JANUARY 2005
Precision, Analog-to-Digital Converter (ADC)
and Digital-to-Analog Converter (DAC)
with 8051 Microcontroller and Flash Memory
www.ti.com
Copyright
2004-2005, Texas Instruments Incorporated
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.
MSC1201
MSC1202
SBAS317B - APRIL 2004 - REVISED JANUARY 2005
www.ti.com
2
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
MSC1201Y2
4k
24
QFN-36
RHH
-40
C to +125
C
MSC1201Y2
MSC1201Y3
8k
24k
QFN-36
RHH
-40
C to +125
C
MSC1201Y3
MSC1201Y3
8k
24k
QFN-36
RHH
-40
C to +125
C
MSC1201Y3
MSC1202Y2
4k
16
QFN-36
RHH
-40
C to +125
C
MSC1202Y2
MSC1202Y2
4k
16
QFN-36
RHH
-40
C to +125
C
MSC1202Y2
MSC1202Y3
8k
16
QFN-36
RHH
-40
C to +125
C
MSC1202Y3
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)
MSC120xY2(2)
MSC120xY3(2)
Flash Program Memory (Bytes)
Up to 4k
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)
MSC1201Yx, MSC1202Yx
UNITS
Analog Inputs
Input current
Momentary
100
mA
Input current
Continuous
10
mA
Input voltage
AGND - 0.3 to AVDD + 0.3
V
Power Supply
DVDD to DGND
-0.3 to +6
V
AVDD to AGND
-0.3 to +6
V
AGND to DGND
-0.3 to +0.3
V
VREF to AGND
-0.3 to AVDD + 0.3
V
Digital input voltage to DGND
-0.3 to DVDD + 0.3
V
Digital output voltage to DGND
-0.3 to DVDD + 0.3
V
Maximum junction temperature
+150
C
Operating temperature range
-40 to +125
C
Storage temperature range
-65 to +150
C
Lead temperature (soldering, 10s)
+235
C
Package power dissipation
(TJ Max - TAMBIENT)/
q
JA
W
Output current, all pins
200
mA
Output pin short-circuit
10
s
Junction to ambient (
q
JA)
High K (2s 2p)
21.9
C/W
Thermal Resistance
Junction to ambient (
q
JA)
Low K (1s)
103.7
C/W
Thermal Resistance
Junction to case (
q
JC)
21.9
C/W
Digital Outputs
Output current
Continuous
100
mA
I/O source/sink current
100
mA
Power pin maximum
300
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.
MSC1201
MSC1202
SBAS317B - APRIL 2004 - REVISED JANUARY 2005
www.ti.com
3
ELECTRICAL CHARACTERISTICS: AV
DD
= 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
Buffer OFF
AGND - 0.1
AVDD + 0.1
V
Analog Input Range
Buffer ON
AGND + 50mV
AVDD - 1.5
V
Full-Scale Input Voltage Range
(In+) - (In-)
VREF/PGA
V
Differential Input Impedance
Buffer OFF
7/PGA(1)
M
Input Current
Buffer ON
0.5
nA
Fast Settling Filter
-3dB
0.469
fDATA
Bandwidth
Sinc2 Filter
-3dB
0.318
fDATA
Bandwidth
Sinc3 Filter
-3dB
0.262
fDATA
Programmable Gain Amplifier
User-Selectable Gain Range
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
A
ADC Offset DAC
Offset DAC Range
V
REF
/(2
PGA)
V
Offset DAC Resolution
8
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
24
Bits
Resolution
MSC1202
16
Bits
ENOB
MSC1201
22
Bits
ENOB
MSC1202
16
Bits
Output Noise
See Typical Characteristics
No Missing Codes
MSC1201, Sinc3 Filter, Decimation > 360
24
Bits
No Missing Codes
MSC1202, Sinc3 Filter
16
Bits
Integral Nonlinearity
End Point Fit, Differential Input
0.0004
0.0015
% of
FSR
Offset Error
After Calibration
1.5
ppm of FS
Offset Drift(2)
Before Calibration
0.02
ppm of FS/
C
Gain Error(3)
After Calibration
0.005
%
Gain Error Drift(2)
Before Calibration
0.5
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
fCM = 60Hz
,
fDATA = 10Hz
130
dB
Common-Mode Rejection
fCM = 50Hz
,
fDATA = 50Hz
120
dB
fCM = 60Hz
,
fDATA = 60Hz
120
dB
Normal-Mode Rejection
fCM = 50Hz
,
fDATA = 50Hz
100
dB
Normal-Mode Rejection
fCM = 60Hz
,
fDATA = 60Hz
100
dB
Power-Supply Rejection
At DC, dB = -20log(
VOUT/
VDD)(4)
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 AV
DD
-1.5V with Buffer ON. To calibrate gain, turn Buffer OFF.
(4)
VOUT is change in digital result.
MSC1201
MSC1202
SBAS317B - APRIL 2004 - REVISED JANUARY 2005
www.ti.com
4
ELECTRICAL CHARACTERISTICS: AV
DD
= 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
UNITS
MAX
TYP
MIN
CONDITION
Voltage Reference Input
Reference Input Range
REF IN+, REF IN-
AGND
AVDD(3)
V
ADC VREF
VREF
(REFIN+) - (REFIN-)
0.1
2.5
AVDD
V
VREF Common-Mode Rejection
At DC
115
dB
Input Current
VREF = 2.5V, PGA = 1
1
A
On-Chip Voltage Reference
Output Voltage
VREFH = 1 at +25
C
2.5
V
Output Voltage
VREFH = 0
1.25
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
CREFOUT = 0.1
F
8
ms
Temperature Sensor
Temperature Sensor Voltage
T = +25
C
115
mV
Temperature Sensor Coefficient
345
V/
C
IDAC Output Characteristics
IDAC Resolution
8
Bits
Full-Scale Output Current
1
mA
Maximum Short-Circuit Current Duration
Indefinite
Compliance Voltage
AVDD - 1.5
V
Analog Power-Supply Requirements
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
A
Analog
ADC Current
PGA = 128, Buffer OFF
430
A
Analog
Power-Supply
ADC Current
(IADC)
PGA = 1, Buffer ON
230
A
Power-Supply
Current
ADC
PGA = 128, Buffer ON
770
A
Current
VREF Supply Current
(IVREF)
ADC ON
360
A
IDAC Supply Current
(IIDAC)
IDAC = 00h
230
A
(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 AV
DD
-1.5V with Buffer ON. To calibrate gain, turn Buffer OFF.
(4)
VOUT is change in digital result.
MSC1201
MSC1202
SBAS317B - APRIL 2004 - REVISED JANUARY 2005
www.ti.com
5
ELECTRICAL CHARACTERISTICS: AV
DD
= 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
Buffer OFF
AGND - 0.1
AVDD + 0.1
V
Analog Input Range
Buffer ON
AGND + 50mV
AVDD - 1.5
V
Full-Scale Input Voltage Range
(In+) - (In-)
VREF/PGA
V
Differential Input Impedance
Buffer OFF
7/PGA(1)
M
Input Current
Buffer ON
0.5
nA
Fast Settling Filter
-3dB
0.469
fDATA
Bandwidth
Sinc2 Filter
-3dB
0.318
fDATA
Bandwidth
Sinc3 Filter
-3dB
0.262
fDATA
Programmable Gain Amplifier
User-Selectable Gain Range
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
A
ADC Offset DAC
Offset DAC Range
V
REF
/(2
PGA)
V
Offset DAC Resolution
8
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
24
Bits
Resolution
MSC1202
16
Bits
ENOB
MSC1201
22
Bits
ENOB
MSC1202
16
Bits
Output Noise
See Typical Characteristics
No Missing Codes
MSC1201, Sinc3 Filter, Decimation > 360
24
Bits
No Missing Codes
MSC1202, Sinc3 Filter
16
Bits
Integral Nonlinearity
End Point Fit, Differential Input
0.0004
0.0015
%
of FSR
Offset Error
After Calibration
1.3
ppm of FS
Offset Drift(2)
Before Calibration
0.02
ppm of FS/
C
Gain Error(3)
After Calibration
0.005
%
Gain Error Drift(2)
Before Calibration
0.5
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
fCM = 60Hz
,
fDATA = 10Hz
130
dB
Common-Mode Rejection
fCM = 50Hz
,
fDATA = 50Hz
120
dB
fCM = 60Hz
,
fDATA = 60Hz
120
dB
Normal-Mode Rejection
fSIG = 50Hz
,
fDATA = 50Hz
100
dB
Normal-Mode Rejection
fSIG = 60Hz
,
fDATA = 60Hz
100
dB
Power-Supply Rejection
At DC, dB = -20log(
VOUT/
VDD)(4)
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.
PDF 
ZIP