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MSC1211Y2 Datasheet(PDF) 4 Page - Texas Instruments

Part # MSC1211Y2
Description  Precision Analog-to-Digital Converter (ADC) and Digital-to-Analog Converters (DACs) with 8051 Microcontroller and Flash Memory
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

MSC1211Y2 Datasheet(HTML) 4 Page - Texas Instruments

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MSC1211, MSC1212
MSC1213,MSC1214
SBAS323D − JUNE 2004 − REVISED SEPTEMBER 2005
www.ti.com
4
ELECTRICAL CHARACTERISTICS: AVDD = 5V (continued)
All specifications from TMIN to TMAX, DVDD = +2.7V to 5.25V, AVDD = +5V, fMOD = 15.625kHz, PGA = 1, filter = Sinc3, Buffer ON, fDATA = 10Hz, Bipolar, fCLK = 8MHz,
and VREF ≡ (REF IN+) − (REF IN−) = +2.5V, unless otherwise noted. For VDAC, VREF = AVDD, RLOAD = 10kΩ, and CLOAD = 200pF, unless otherwise noted.
MSC1211/12/13/14
PARAMETER
UNITS
MAX
TYP
MIN
CONDITIONS
Voltage Reference Inputs
Reference Input Range
REF IN+, REF IN−
AGND
AVDD(3)
V
VREF
VREF ≡ (REF IN+) − (REF IN−)
0.1
2.5
AVDD
V
VREF Common-Mode Rejection
At DC
110
dB
Input Current(5)
VREF = 2.5V, ADC Only
1
µA
DAC Reference Input Resistance
For Each DAC, PGA = 1
20
k
On-Chip Voltage Reference
Output Voltage
VREFH = 1 at +25
°C, REFCLK = 250kHz
2.495
2.5
2.505
V
Output Voltage
VREFH = 0 at +25
°C, REFCLK = 250kHz
1.25
V
Power-Supply Rejection Ratio
65
dB
Short-Circuit Current Source
2.6
mA
Short-Circuit Current Sink
50
µA
Short-Circuit Duration
Sink or Source
Indefinite
Drift
5
ppm/
°C
Output Impedance
Sourcing 100
µA
3
Startup Time from Power ON
CREFOUT = 0.1µF
8
ms
Temperature Sensor Voltage
Buffer ON, T = +25
°C
115
mV
Temperature Sensor Coefficient
Buffer ON
375
µV/°C
Voltage DAC Static Performance(6)
Resolution
16
Bits
Relative Accuracy
±0.05
±0.146
%
Differential Nonlinearity
Ensured Monotonic by Design
±1
LSB
Zero Code Error
All 0s Loaded to DAC Register
+13
+35
mV
Full-Scale Error
All 1s Loaded to DAC Register
−1.25
0
% of FSR
Gain Error
−1.25
0
+1.25
% of FSR
Zero Code Error Drift
±20
µV/°C
Gain Temperature Coefficient
±5
ppm of FSR/
°C
Voltage DAC Output Characteristics(7)
Output Voltage Range
REF IN+ = AVDD
AGND
AVDD
V
Output Voltage Settling Time
To
±0.003% FSR, 0200h to FD00h
8
µs
Slew Rate
1
V/
µs
DC Output Impedance
7
Short-Circuit Current
All 1s Loaded to DAC Register
20
mA
IDAC Output Characteristics
Full-Scale Output Current
Maximum VREF = 2.5V
25
mA
Maximum Short-Circuit Current Duration
Indefinite
Compliance Voltage
AVDD − 1.5
V
Relative Accuracy
0.185
% of FSR
Zero Code Error
All 0s Loaded to DAC Register
0.5
µA
Full-Scale Error
All 1s Loaded to DAC Register
−0.4
% of FSR
Gain Error
−0.6
% of FSR
(1) The input impedance for PGA = 128 is the same as that for PGA = 64 (that is, 7MΩ/64).
(2) Calibration can minimize these errors.
(3) The self 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.
(5) 9pF switched capacitor at f
SAMP clock frequency (see Figure 14).
(6) Linearity calculated using a reduced code range of 512 to 65024; output unloaded.
(7) Ensured by design and characterization; not production tested.
(8) Analog Brownout Detect OFF (HCR1.3 = 1), Analog LVD OFF (LVDCON.7 = 1).


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