LTC1668I datasheet(2/16 Pages) LINER

2 / 16 page

LTC1668

LTC1668CG

LTC1668IG

TJMAX = 110°C, θJA = 100°C/W

ORDER PART

NUMBER

Consult factory for Military grade parts.

TOP VIEW

G PACKAGE

28-LEAD PLASTIC SSOP

DB13

DB12

DB11

DB10

DB9

DB8

DB7

DB6

DB5

DB4

DB3

DB2

DB1

DB0 (LSB)

DB14

DB15 (MSB)

CLK

VDD

DGND

VSS

COMP2

COMP1

IOUT A

IOUT B

LADCOM

AGND

IREFIN

REFOUT

The q denotes specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VDD = 5V, VSS = – 5V, LADCOM = AGND = DGND = 0V, IOUTFS = 10mA.

(Note 1)

Supply Voltage (VDD) ................................................ 6V

Negative Supply Voltage (VSS) ............................... – 6V

Total Supply Voltage (VDD to VSS) .......................... 12V

Digital Input Voltage .................... – 0.3V to (VDD + 0.3V)

Analog Output Voltage

(IOUT A and IOUT B) ........ (VSS – 0.3V) to (VDD + 0.3V)

Power Dissipation ............................................. 500mW

Operating Temperature Range

LTC1668C .............................................. 0

°C to 70°C

LTC1668I ........................................... – 40

°C to 85°C

Storage Temperature Range ................ – 65

°C to 150°C

Lead Temperature (Soldering, 10 sec).................. 300

°C

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

DC Accuracy (Measured at IOUTA, Driving a Virtual Ground)

Resolution

Bits

Monotonicity

Bits

INL

Integral Nonlinearity

±8

LSB

DNL

Differential Nonlinearity

±1

±4

LSB

Offset Error

0.1

±0.2

% FSR

Offset Error Drift

ppm/

°C

Gain Error

Internal Reference, RIREFIN = 2k

% FSR

External Reference, VREF = 2.5V, RIREFIN = 2k

% FSR

Gain Error Drift

Internal Reference

ppm/

°C

External Reference

ppm/

°C

PSRR

Power Supply Rejection Ratio

VDD = 5V ±5%

±0.1

% FSR/V

VSS = –5V ±5%

±0.1

% FSR/V

Analog Output

IOUTFS

Full-Scale Output Current

110

Output Compliance Range

IFS = 10mA

–1

Output Resistance; RIOUTA, RIOUTB

IOUTA, B to LADCOM

0.7

1.1

1.5

Ω

Output Capacitance

5pF

Reference Output

Reference Voltage

REFOUT Tied to IREFIN Through 2kΩ

2.475

2.5

2.525

Reference Output Drift

ppm/

°C

Reference Output Load Regulation

ILOAD = 0mA to 5mA

mV/mA

PACKAGE/ORDER I FOR ATIO

ABSOLUTE

AXI U

RATI GS

ELECTRICAL CHARACTERISTICS

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