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MSC1212Y4PAGR Datasheet(PDF) 5 Page - Burr-Brown (TI)

[Old version datasheet] Texas Instruments acquired Burr-Brown Corporation.
Part # MSC1212Y4PAGR
Description  Precision Analog-to-Digital Converter (ADC)
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Manufacturer  BURR-BROWN [Burr-Brown (TI)]
Direct Link  http://www.burr-brown.com
Logo BURR-BROWN - Burr-Brown (TI)

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MSC1212
5
SBAS278A
www.ti.com
ELECTRICAL CHARACTERISTICS: AVDD = 3V (Cont.)
All specifications from TMIN to TMAX, AVDD = +3V, DVDD = +2.7V to 5.25V, fMOD = 15.625kHz, PGA = 1, Buffer ON, fDATA = 10Hz, and Bipolar, VREF ≡ (REF IN+) – (REF IN–) = +1.25V,
unless otherwise noted. For VDAC, VREF = AVDD, RLOAD = 10kΩ, and CLOAD = 200pF, unless otherwise noted.
MSC1212Yx
PARAMETER
CONDITION
MIN
TYP
MAX
UNITS
SYSTEM PERFORMANCE (Cont.)
Common-Mode Rejection
At DC
100
115
dB
fCM = 60Hz, fDATA = 10Hz
130
dB
fCM = 50Hz, fDATA = 50Hz
120
dB
fCM = 60Hz, fDATA = 60Hz
120
dB
Normal Mode Rejection
fSIG = 50Hz, fDATA = 50Hz
100
dB
fSIG = 60Hz, fDATA = 60Hz
100
dB
Power-Supply Rejection
At DC, dB = –20log(
∆V
OUT/∆VDD)
(3)
85
dB
VOLTAGE REFERENCE INPUTS
Reference Input Range
REF IN+, REF IN–
0.0
AVDD(2)
V
VREF
VREF ≡ (REF IN+) – (REF IN–)
0.3
1.25
AVDD
V
VREF Common-Mode Rejection
At DC
110
dB
Input Current(4)
VREF = 1.25V, ADC Only
10
µA
DAC Reference Current
For each DAC, 3V Reference
25
µA
ON-CHIP VOLTAGE REFERENCE
Output Voltage
VREFH = 0 at +25
°C, PGA = 1, 2, 4, 8
1.245
1.25
1.255
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
µA3
Startup Time from Power ON
CREFOUT = 0.1µF8
ms
Temperature Sensor
Temperature Sensor Voltage
T = +25
°C
115
mV
Temperature Sensor Coefficient
375
µV/°C
VOLTAGE DAC STATIC PERFORMANCE (5)
Resolution
16
Bits
Relative Accuracy
±0.05
±0.146
% of FSR
Differential Nonlinearity
Ensured Monotonic by Design
±1LSB
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(6)
Output Voltage Range
AGND
AVDD
V
Output Voltage Settling Time
To
±0.003% FSR, 0200H to FD00H
8
µs
Slew Rate
1V/
µs
DC Output Impedance
7
Short-Circuit Current
All 1s Loaded to DAC Register
16
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
Relative Accuracy
Over Full Range
0.185
% of FSR
Zero Code Error
0.5
% of FSR
Full-Scale Error
–0.4
% of FSR
Gain Error
–0.6
% of FSR
ANALOG POWER-SUPPLY REQUIREMENTS
Analog Power-Supply Voltage
AVDD
2.7
3.6
V
Analog Current
IADC + IVREF
Analog OFF, PDAD = 1
< 1
nA
ADC Current
IADC
PGA = 1, Buffer OFF
200
µA
PGA = 128, Buffer OFF
500
µA
PGA = 1, Buffer ON
240
µA
PGA = 128, Buffer ON
850
µA
VDAC Current
IVDAC
Excluding Load Current External Reference
250
µA
VREF Current
IVREF
250
µA
NOTES: (1) Calibration can minimize these errors. (2) The gain calibration cannot have a REF IN+ of more than AVDD – 1.5V with buffer ON. To calibrate gain,
turn buffer off. (3)
∆V
OUT is change in digital result. (4) 9pF switched capacitor at fSAMP clock frequency (see Figure 6). (5) Linearity calculated using a reduced code
range of 512 to 65024; output unloaded. (6) Ensured by design and characterization, not production tested.


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