5962-9957601Q2A datasheet(5/23 Pages) TI1

Part #	5962-9957601Q2A

Description	2.7-V TO 5.5-V LOW-POWER DUAL 12-BIT DIGITAL-TO-ANALOG CONVERTER WITH INTERNAL REFERENCE AND POWER DOWN

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ELECTRICAL CHARACTERISTICS (Continued)

TLV5638

SLAS225C – JUNE 1999 – REVISED JANUARY 2004

over recommended operating conditions, V

ref = 2.048 V, Vref= 1.024 V (unless otherwise noted)

STATIC DAC SPECIFICATIONS

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Resolution

12

bits

C and I

±1.7

±4

LSB

suffixes

Integral nonlinearity, end point ad-

INL

See (1)

justed

Q and M

±1.7

±6

LSB

suffixes

DNL

Differential nonlinearity

See (2)

±0.4

±1

LSB

Zero-scale error (offset error at zero

EZS

See (3)

±24

mV

scale)

Zero-scale-error temperature coef-

EZSTC

See (4)

10

ppm/°C

ficient

% full

EG

Gain error

See(5)

±0.6

scale V

EGTC

Gain error temperature coefficient

See (6)

10

ppm/°C

OUTPUT SPECIFICATIONS

VO

Output voltage

RL= 10 kΩ

0

VDD-0.4

V

% full

Output load regulation accuracy

VO = 4.096 V, 2.048 V, RL= 2 kΩ

±0.25

scale V

REFERENCE PIN CONFIGURED AS OUTPUT (REF)

Vref(OUTL)

Low reference voltage

1.003

1.024

1.045

V

Vref(OUTH)

High reference voltage

VDD > 4.75 V

2.027

2.048

2.069

V

Iref(source)

Output source current

1

mA

Iref(sink)

Output sink current

-1

mA

Load capacitance

100

pF

PSRR

Power supply rejection ratio

-65

dB

REFERENCE PIN CONFIGURED AS INPUT (REF)

VI

Input voltage

0

VDD-1.5

V

RI

Input resistance

10

M

Ω

CI

Input capacitance

5

pF

Fast

1.3

MHz

Reference input bandwidth

REF = 0.2 Vpp + 1.024 V dc

Slow

525

kHz

Reference feedthrough

REF = 1 Vpp at 1.024 V dc(7)

-80

dB

DIGITAL INPUTS

IIH

HIgh-level digital input current

VI = VDD

1

µA

IIL

Low-level digital input current

VI = 0 V

-1

µA

Ci

Input capacitance

8

pF

(1)

The relative accuracy or integral nonlinearity (INL) sometimes referred to as linearity error, is the maximum deviation of the output from

the line between zero and full scale excluding the effects of zero code and full-scale errors. Tested from code 32 to 4095.

(2)

The differential nonlinearity (DNL) sometimes referred to as differential error, is the difference between the measured and ideal 1 LSB

amplitude change of any two adjacent codes. Monotonic means the output voltage changes in the same direction (or remains constant)

as a change in the digital input code.

(3)

Zero-scale error is the deviation from zero voltage output when the digital input code is zero.

(4)

Zero-scale-error temperature coefficient is given by: EZS TC = [EZS (Tmax) - EZS (Tmin)]/Vref× 106/(Tmax - Tmin).

(5)

Gain error is the deviation from the ideal output (2Vref - 1 LSB) with an output load of 10 kΩ excluding the effects of the zero-error.

(6)

Gain temperature coefficient is given by: EG TC = [EG(Tmax) - EG (Tmin)]/Vref× 106/(Tmax - Tmin).

(7)

Reference feedthrough is measured at the DAC output with an input code = 0x000.

5

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