Panasonic AN8140K Datasheet

1

A/D and D/A Converters

■ Overview

The AN8140K is a 10-bit D/A converter for image pro­cessing which has realized low power comsumption by
using the Bi-CMOS process.

■ Features

• 10-bit resolution

•

High speed : maximum conversion rate of 50MSPS

•

Low power comsumption : 150mW

•

TTL compatible input level

•

Single 5V power supply

•

Built-in reference power supply

■ Application Field

•

Image equipment such as hi-vision device

•

OA equipment such as image scanner

•

Measuring equipment such as digital oscilloscope

AN8140K

High-speed Low Power Consumption 10-bit D/A Converter

Unit : mm

24-pin Shrunk DIL Plastic Package (SDIP024-P-0300)

7.62±0.25

21.7±0.3

0.3±

+ 0.2

– 0.05

3 ∼15˚

6.2±0.3

0.5±0.1

0.9±0.25

1.778

4.7±0.25

3.05±0.25

1.1±0.25

1
2
3
4
5
6
7
8

9
10
11
12

24
23
22
21
20
19
18
17
16
15
14
13

■ Block Diagram

REFI
IREF

D6

D7

D8

D9

(MSB)

COMP CLK D5 D4 D3 D2 D1

9 14 19 20 21 22 23 24

+

7

10

18

17

16

15

–

Current
Source

X– Decoder

AGND DV

Latch

DGND AVCCAV

CC

X – Decoder

Latch

CC

AGND

VIB NC

1/2 1/4 1/8

8 13 13 2 11 12 4

(LSB)

D0

Latch

Reference
Voltage Regulator

OUT

5

6

REFO

2

A/D and D/A Converters

AN8140K

Parameter Condition Rating Unit
Resolution 10 bit
Linearity error R

REF

= 470Ω ±1.0 LSB

Differential linearity error R

O

= 75Ω ±1.0 LSB

Maximum conversion rate V

REFO –VREFI

= 1.4V 50 MSPS

■ Main Characteristics (VCC=5.0V, Ta=25˚C)

V

CC

V

IN

I

O

V

REFI

P

D

T

opr

T

stg

Supply voltage
Digital input voltage
Analogue output current
Reference input voltage
Power dissipation
Operating ambient temperature
Storage temperature

V
V

mA

V

mW

˚C
˚C

Paremeter Symbol Rating Unit

■ Absolute Maximum Rating (Ta=25˚C)

– 0.3 to +7.0

– 0.3 to DV

CC

30

– 0.3 to AV

CC

700

–20 to + 70

–55 to +150

VIN= 0V, 5V
VIN= 0V, 5V
I

REFO

= 3.0mA

Parameter Symbol Rating min typ max Unit

■ Electrical Characteristics (VCC=5.0V, Ta=25˚C)

I

CC

I

LK1

I

LK2

V

REFO

E

L

E

D

F

C

V

FS

V

ZS

t

ST

2.16

50

4.9

3.8

30

2.7

±0.5
±0.5

5.0

4.0

50

±30
±30

3.24

±1
±1

5.1

4.2
20

mA

µA
µA

V
LSB
LSB

MSPS

V

V

ns

Supply current
Digital input leak current
REFI input leak current
Reference output voltage
Linearty error
Differential linearty error
Maximum conversion rate
Full-scale output voltage
Zero-scale output voltage
Settling time

R

REF

= 470Ω

RO= 75Ω
V

REF0 –VREFI

= 1.4V

Parameter Symbol Conditions min typ max Unit

Supply voltage V

CC

4.75 5.0 5.25 V

Regerence voltage v

REFO

= 2.7V V

REFI

RO = 75Ω, R

REF

= 470Ω 1.3 V

Output load resistance R

O

75 Ω

Digital input voltage

V

IH

2.4 V

V

IL

0.8 V

Clock input pulse width

t

WH

*1 8 *2 ns

t

WL

*1 8 *2 ns

Setting-up time t

S

*1 5 ns

Holding time t

H

*1 1 ns

■ Recommended Operating Conditions (Ta=25˚C)

*1 : Refer to the timing chart.
*2 : tWH+tWL≥20ns