MSC1202Y2RHHT datasheet(6/92 Pages) TI

6 / 92 page

MSC1200

MSC1201

MSC1202

SBAS317E − APRIL 2004 − REVISED MAY 2006

www.ti.com

ELECTRICAL CHARACTERISTICS: AVDD = 3V (continued)

All specifications from TMIN to TMAX, DVDD = +2.7V to +5.25V,

fMOD = 15.625kHz, PGA = 1, Buffer ON, fDATA = 10Hz, ADC Bipolar Mode, and

VREF ≡ (REF IN+) − (REF IN−) = +1.25V, unless otherwise noted.

MSC120x

PARAMETER

UNITS

MAX

TYP

MIN

CONDITIONS

Voltage Reference Input

Reference Input Range

REF IN+, REF IN−

AGND

AVDD(3)

ADC VREF

VREF ≡ (REFIN+) − (REFIN−)

0.1

1.25

AVDD

VREF Common-Mode Rejection

At DC

110

Input Current

VREF = 1.25V, PGA = 1

0.5

µA

On-Chip Voltage Reference

Output Voltage

VREFH = 0, T = +25

°C

1.23

1.25

1.27

Short-Circuit Current Source

2.9

Short-Circuit Current Sink

µA

Short-Circuit Duration

Sink or Source

Indefinite

Startup Time from Power ON

CREFOUT = 0.1µF

0.2

Temperature Sensor

Temperature Sensor Voltage

T = +25

°C

115

Temperature Sensor Coefficient

MSC1200

375

µV/°C

Temperature Sensor Coefficient

MSC1201, MSC1202

345

µV/°C

IDAC Output Characteristics

IDAC Resolution

Bits

Full-Scale Output Source Current

Maximum Short-Circuit Current Duration

Indefinite

Compliance Voltage

AVDD − 1.5

IDAC Zero Code Current

µA

IDAC INL

1.5

LSB

Analog Power-Supply Requirements

Analog Power-Supply Voltage

AVDD

2.7

3.3

3.6

Analog Current

BOR OFF, External Clock Mode, Analog OFF,

ALVD OFF, PDADC = PDIDAC = 1

< 1

PGA = 1, Buffer OFF

150

µA

Analog

ADC Current

PGA = 128, Buffer OFF

380

µA

Analog

Power-Supply

ADC Current

(IADC)

PGA = 1, Buffer ON

200

µA

Power-Supply

Current

ADC

PGA = 128, Buffer ON

610

µA

Current

VREF Supply Current

(IVREF)

ADC ON

330

µA

IDAC Supply Current

(IIDAC)

IDAC = 00h

220

µA

(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 gain self-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.

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