DAC8806IDB datasheet(3/20 Pages) TI

部品番号	DAC8806IDB

部品情報	14-Bit, Parallel Input Multiplying Digital-to-Analog Converter

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ELECTRICAL CHARACTERISTICS

DAC8806

SBAS385A – APRIL 2006 – REVISED JUNE 2006

All specifications at –40

°C to +85°C, V

DD = +2.7V to +5.5V, IOUT = virtual GND, GND = 0V, VREF = 10V, and TA = full

operating temperature, unless otherwise noted.

DAC8806

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

STATIC PERFORMANCE

Resolution

14

Bits

Relative accuracy

DAC8806

±1

LSB

Differential nonlinearity

±0.5

±1

LSB

Output leakage current

Data = 0000h, TA = +25°C

5

nA

Output leakage current

Data = 0000h, TA = TMAX

10

nA

Full-scale gain error

Unipolar, data = 3FFFh

1

±4

LSB

Bipolar, data = 3FFFh

1

±4

LSB

Full-scale temperature coefficient

1

2

ppm/

°C

Bipolar zero scale error

±1

±3

LSB

PSRR

Power-supply rejection ratio; VDD = 5V ±10%

±0.1

±1

LSB/V

OUTPUT CHARACTERISTICS(1)

Output current

1.66

mA

Output capacitance

Code dependent

50

pF

REFERENCE INPUT

VREF range

–15

15

V

RREF

Input resistance (unipolar)

4.5

6

7.5

k

Ω

Input capacitance

5

pF

R1/R2

R1/R2 resistance (bipolar)

9

12

15

k

Ω

ROFS, RFB

Feedback and offset resistance

9

12

15

k

Ω

LOGIC INPUTS AND OUTPUT(1)

Input low voltage

VIL VDD = +2.7V

0.6

V

VIL VDD = +5V

0.8

V

Input high voltage

VIH VDD = +2.7V

2.1

V

VIH VDD = +5V

2.4

V

Input leakage current

IIL

0.001

1

µA

Input capacitance

CIL

8

pF

INTERFACE TIMING, VDD = +5.0V(1) (See Figure 40 and Table 1)

tDS Data to WR setup time

20

ns

tDH Data to WR hold time

0

ns

tWR WR pulse width

20

ns

tLDAC LDAC pulse width

20

ns

Data setup time

tRST RST pulse width

20

ns

Data hold time

tLWD WR to LDAC delay time

0

ns

INTERFACE TIMING, VDD = +5.0V(1) (See Figure 40 and Table 1)

tDS Data to WR setup time

35

ns

tDH Data to WR hold time

0

ns

tWR WR pulse width

35

ns

tLDAC LDAC pulse width

35

ns

Data setup time

tRST RST pulse width

35

ns

Data hold time

tLWD WR to LDAC delay time

0

ns

(1)

Specified by design and characterization; not production tested.

3

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