SC1200 datasheet(3/60 Pages) TI

3 / 60 page

MSC1200

SBAS289E

www.ti.com

SYSTEM PERFORMANCE

Resolution

Bits

ENOB

Bits

Output Noise

See Typical Characteristics

No Missing Codes

Sinc3 Filter

Bits

Integral Nonlinearity

End Point Fit, Differential Input

±0.0004

±0.0015

%FSR

Offset Error

After Calibration

1.5

ppm of FS

Offset Drift(1)

Before Calibration

0.02

ppm of FS/

°C

Gain Error(2)

After Calibration

0.005

Gain Error Drift(1)

Before Calibration

0.5

ppm/

°C

System Gain Calibration Range

120

% of FS

System Offset Calibration Range

–50

% of FS

Common-Mode Rejection

At DC

100

120

fCM = 60Hz, fDATA = 10Hz

130

fCM = 50Hz, fDATA = 50Hz

120

fCM = 60Hz, fDATA = 60Hz

120

Normal Mode Rejection

fSIG = 50Hz, fDATA = 50Hz

100

fSIG = 60Hz, fDATA = 60Hz

100

Power-Supply Rejection

At DC, dB = –20log(

∆V

OUT/∆VDD)

(3)

100

VOLTAGE REFERENCE INPUTS

Reference Input Range

REF IN+, REF IN–

AGND

AVDD(2)

VREF

VREF ≡ (REF IN+) – (REF IN–)

0.3

2.5

AVDD

Common-Mode Rejection

At DC

115

Input Current

VREF = 2.5V, PGA = 1

µA

ON-CHIP VOLTAGE REFERENCE

Output Voltage

VREFH = 1 at +25

°C

2.5

VREFH = 0

1.25

Short-Circuit Current Source

9mA

Short-Circuit Current Sink

Short-Circuit Duration

Sink or Source

Indefinite

Startup Time from Power ON

0.4

Temperature Sensor

Temperature Sensor Voltage

T = +25

°C115

Temperature Sensor Coefficient

375

µV/°C

IDAC OUTPUT CHARACTERISTICS

Full-Scale Output Current

1mA

Maximum Short-Circuit Current Duration

Indefinite

Compliance Voltage

AVDD – 1.5

ANALOG POWER-SUPPLY REQUIREMENTS

Power-Supply Voltage

AVDD

4.75

5.0

5.25

Analog Current

Analog OFF, ALVD OFF, PDADC = PDIDAC = 1

< 1

ADC Current

IADC

PGA = 1, Buffer OFF

170

µA

PGA = 128, Buffer OFF

430

µA

PGA = 1, Buffer ON

230

µA

PGA = 128, Buffer ON

770

µA

VREF Supply Current

IVREF

ADC ON

360

µA

IDAC Supply Current

IIDAC

IDAC = 00H

230

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) DVOUT is change in digital result.

ELECTRICAL CHARACTERISTICS: AVDD = 5V (Cont.)

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.

MSC1200Yx

PARAMETER

CONDITION

MIN

TYP

MAX

UNITS

SC1200 Datasheet(PDF) 3 Page - Texas Instruments

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