最新消息: USBMI致力于为网友们分享Windows、安卓、IOS等主流手机系统相关的资讯以及评测、同时提供相关教程、应用、软件下载等服务。

芯片709_图文

IT圈 admin 34浏览 0评论

2024年4月17日发(作者:宫楚)

®

DAC707

DAC708

DAC709

Microprocessor-Compatible

16-BIT DIGITAL-TO-ANALOG CONVERTERS

FEATURES

qTWO-CHIP CONSTRUCTION

qHIGH-SPEED 16-BIT PARALLEL, 8-BIT

(BYTE) PARALLEL, AND SERIAL INPUT

MODES

qDOUBLE-BUFFERED INPUT REGISTER

CONFIGURATION

qV

OUT

AND I

OUT

MODELS

qHIGH ACCURACY:

Linearity Error

±

0.003% of FSR max

Differential Linearity Error

±

0.006% of FSR

max

qMONOTONIC (TO 14 BITS) OVER

SPECIFIED TEMPERATURE RANGE

qHERMETICALLY SEALED

qLOW COST PLASTIC VERSIONS

AVAILABLE (DAC707JP/KP)

DESCRIPTION

The DAC708 and DAC709 are 16-bit converters de-

signed to interface to an 8-bit microprocessor bus. 16-

bit data is loaded in two successive 8-bit bytes into

parallel 8-bit latches before being transferred into the

D/A latch. The DAC708 and DAC709 are current and

voltage output models respectively and are in 24-pin

hermetic DIPs. Input coding is Binary Two’s Comple-

ment (bipolar) or Unipolar Straight Binary (unipolar,

when an external logic inverter is used to invert the

MSB). In addition, the DAC708/709 can be loaded

serially (MSB first).

The DAC707 is designed to interface to a 16-bit bus.

8-Bit

(DAC708, 709)

or

16-Bit (DAC707)

Serial

Data

Low

Byte

Latch

High

Byte

Latch

D/A

Latch

Reference

Circuit

16-Bit

D/A

Con-

verter

Bipolar

Offset

Data is written into a 16-bit latch and subsequently the

D/A latch. The DAC707 has bipolar voltage output

and input coding is Binary Two’s Complement (BTC).

All models have Write and Clear control lines as well

as input latch enable lines. In addition, DAC708 and

DAC709 have Chip Select control lines. In the bipolar

mode, the Clear input sets the D/A latch to give zero

voltage or current output. They are all 14-bit accurate

and are complete with reference, and for the DAC707,

and DAC709, a voltage output amplifier. All models

are available with an optional burn-in screening.

Summing Junction (708, 709)

10V Range (708, 709)

Serial

(DAC708, 709)

V

OUT

Latch Enables/

Mode Select

CLEAR

WRITE

CHIP SELECT

Control

Logic

DAC707 or DAC709

Only

DAC707/708/709 Block Diagram

International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111

Internet: / • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132

PDS-557H

SPECIFICATIONS

ELECTRICAL

At T

A

= +25°C, V

CC

= ±15V, V

DD

= +5V, and after a 10-minute warm-up, unless otherwise noted.

DAC707/708/709KH,

DAC707KP

MAXMINTYPMAXMIN

DAC707/708/

709BH, SH

TYPMAXUNITS

DAC707JP

PRODUCT

INPUT

DIGITAL INPUT

Resolution

Bipolar Input Code (all models)

Unipolar Input Code

(1)

(DAC708/709 only)

Logic Levels

(2)

: V

IH

V

IL

I

IH

(V

I

= +2.7V)

I

IL

(V

I

= +0.4V)

TRANSFER CHARACTERISTICS

ACCURACY

(3)

Linearity Error

Differential Linearity Error

(5)

at Bipolar Zero

(5, 6)

Gain Error

(7)

Zero Error

(7)

Monotonicity Over Spec Temp Range

Power Supply Sensitivity: +V

CC,

–V

CC

V

DD

DRIFT (Over Spec Temp Range

(3)

)

Total Error Over Temp Range

(8)

Total Full Scale Drift

Gain Drift

Zero Drift: Unipolar (DAC708/709 only)

Bipolar (all models)

Differential Linearity Over Temp

(5)

Linearity Error Over Temp

(5)

SETTLING TIME (to ±0.003% of FSR)

(9)

Voltage Output Models

Full Scale Step (2kΩ load)

1LSB Step at Worst Case Code

(10)

Slew Rate

Current Output Models

Full Scale Step (2mA): 10 to 100Ω Load

1kΩ Load

OUTPUT

VOLTAGE OUTPUT MODELS

Output Voltage Range

DAC709: Unipolar (USB Code)

Bipolar (BTC Code)

DAC707 Bipolar (BTC Code)

Output Current

Output Impedance

Short Circuit to Common Duration

CURRENT OUTPUT MODELS

Output Current Range (±30% typ)

DAC708: Unipolar (USB Code)

Bipolar (BTC Code)

Unipolar Output Impedance (±30% typ)

Bipolar Output Impedance (±30% typ)

Compliance Voltage

±0.003

±0.0045

±0.07

±0.05

13

±0.0015

±0.0001

±0.08

±10

±10

±5

±0.006

±0.001

±0.006

±0.012

±0.30

±0.1

16

Binary Two’s Complement

+2.0

–1.0

+5.5

+0.8

1

1

MINTYP

*

*

Unipolar Straight Binary

**

**

*

*

*

*

*

*

*

*

*

*

*

Bits

V

V

µA

µA

±0.0015

±0.003

±0.003

*

*

14

*

*

*

*

*

±2.5

*

±0.003

±0.006

±0.006

±0.15

*

14

*

*

±0.15

±25

±25

±5

±12

+0.009,

–0.006

±0.006

*

*

±0.0015

±0.05

*

*

*

*

*

±7

±1.5

±4

*

*

±0.003

±0.10

*

±0.003

*

±0.10

±15

±15

±3

±10

*

*

% of FSR

(4)

% of FSR

% of FSR

%

% of FSR

Bits

% of FSR/%V

CC

% of FSR/%V

DD

% of FSR

ppm of FSR/°C

ppm/°C

ppm of FSR/°C

ppm of FSR/°C

% of FSR

% of FSR

±30

±15

±0.012

±0.012

4

2.5

10

*

*

*

350

1

8

4

*

*

*

*

*

8

4

µs

µs

V/µs

ns

µs

±10

±5

0.15

Indefinite

*

0 to +10

±5, ±10

*

*

*

*

*

*

*

*

*

V

V

V

mA

0 to –2

±1

4.0

2.45

±2.5

*

*

*

*

*

mA

mA

kΩ

kΩ

V

The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes

no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change

without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant

any BURR-BROWN product for use in life support devices and/or systems.

®

DAC707/708/709

2

2024年4月17日发(作者:宫楚)

®

DAC707

DAC708

DAC709

Microprocessor-Compatible

16-BIT DIGITAL-TO-ANALOG CONVERTERS

FEATURES

qTWO-CHIP CONSTRUCTION

qHIGH-SPEED 16-BIT PARALLEL, 8-BIT

(BYTE) PARALLEL, AND SERIAL INPUT

MODES

qDOUBLE-BUFFERED INPUT REGISTER

CONFIGURATION

qV

OUT

AND I

OUT

MODELS

qHIGH ACCURACY:

Linearity Error

±

0.003% of FSR max

Differential Linearity Error

±

0.006% of FSR

max

qMONOTONIC (TO 14 BITS) OVER

SPECIFIED TEMPERATURE RANGE

qHERMETICALLY SEALED

qLOW COST PLASTIC VERSIONS

AVAILABLE (DAC707JP/KP)

DESCRIPTION

The DAC708 and DAC709 are 16-bit converters de-

signed to interface to an 8-bit microprocessor bus. 16-

bit data is loaded in two successive 8-bit bytes into

parallel 8-bit latches before being transferred into the

D/A latch. The DAC708 and DAC709 are current and

voltage output models respectively and are in 24-pin

hermetic DIPs. Input coding is Binary Two’s Comple-

ment (bipolar) or Unipolar Straight Binary (unipolar,

when an external logic inverter is used to invert the

MSB). In addition, the DAC708/709 can be loaded

serially (MSB first).

The DAC707 is designed to interface to a 16-bit bus.

8-Bit

(DAC708, 709)

or

16-Bit (DAC707)

Serial

Data

Low

Byte

Latch

High

Byte

Latch

D/A

Latch

Reference

Circuit

16-Bit

D/A

Con-

verter

Bipolar

Offset

Data is written into a 16-bit latch and subsequently the

D/A latch. The DAC707 has bipolar voltage output

and input coding is Binary Two’s Complement (BTC).

All models have Write and Clear control lines as well

as input latch enable lines. In addition, DAC708 and

DAC709 have Chip Select control lines. In the bipolar

mode, the Clear input sets the D/A latch to give zero

voltage or current output. They are all 14-bit accurate

and are complete with reference, and for the DAC707,

and DAC709, a voltage output amplifier. All models

are available with an optional burn-in screening.

Summing Junction (708, 709)

10V Range (708, 709)

Serial

(DAC708, 709)

V

OUT

Latch Enables/

Mode Select

CLEAR

WRITE

CHIP SELECT

Control

Logic

DAC707 or DAC709

Only

DAC707/708/709 Block Diagram

International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111

Internet: / • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132

PDS-557H

SPECIFICATIONS

ELECTRICAL

At T

A

= +25°C, V

CC

= ±15V, V

DD

= +5V, and after a 10-minute warm-up, unless otherwise noted.

DAC707/708/709KH,

DAC707KP

MAXMINTYPMAXMIN

DAC707/708/

709BH, SH

TYPMAXUNITS

DAC707JP

PRODUCT

INPUT

DIGITAL INPUT

Resolution

Bipolar Input Code (all models)

Unipolar Input Code

(1)

(DAC708/709 only)

Logic Levels

(2)

: V

IH

V

IL

I

IH

(V

I

= +2.7V)

I

IL

(V

I

= +0.4V)

TRANSFER CHARACTERISTICS

ACCURACY

(3)

Linearity Error

Differential Linearity Error

(5)

at Bipolar Zero

(5, 6)

Gain Error

(7)

Zero Error

(7)

Monotonicity Over Spec Temp Range

Power Supply Sensitivity: +V

CC,

–V

CC

V

DD

DRIFT (Over Spec Temp Range

(3)

)

Total Error Over Temp Range

(8)

Total Full Scale Drift

Gain Drift

Zero Drift: Unipolar (DAC708/709 only)

Bipolar (all models)

Differential Linearity Over Temp

(5)

Linearity Error Over Temp

(5)

SETTLING TIME (to ±0.003% of FSR)

(9)

Voltage Output Models

Full Scale Step (2kΩ load)

1LSB Step at Worst Case Code

(10)

Slew Rate

Current Output Models

Full Scale Step (2mA): 10 to 100Ω Load

1kΩ Load

OUTPUT

VOLTAGE OUTPUT MODELS

Output Voltage Range

DAC709: Unipolar (USB Code)

Bipolar (BTC Code)

DAC707 Bipolar (BTC Code)

Output Current

Output Impedance

Short Circuit to Common Duration

CURRENT OUTPUT MODELS

Output Current Range (±30% typ)

DAC708: Unipolar (USB Code)

Bipolar (BTC Code)

Unipolar Output Impedance (±30% typ)

Bipolar Output Impedance (±30% typ)

Compliance Voltage

±0.003

±0.0045

±0.07

±0.05

13

±0.0015

±0.0001

±0.08

±10

±10

±5

±0.006

±0.001

±0.006

±0.012

±0.30

±0.1

16

Binary Two’s Complement

+2.0

–1.0

+5.5

+0.8

1

1

MINTYP

*

*

Unipolar Straight Binary

**

**

*

*

*

*

*

*

*

*

*

*

*

Bits

V

V

µA

µA

±0.0015

±0.003

±0.003

*

*

14

*

*

*

*

*

±2.5

*

±0.003

±0.006

±0.006

±0.15

*

14

*

*

±0.15

±25

±25

±5

±12

+0.009,

–0.006

±0.006

*

*

±0.0015

±0.05

*

*

*

*

*

±7

±1.5

±4

*

*

±0.003

±0.10

*

±0.003

*

±0.10

±15

±15

±3

±10

*

*

% of FSR

(4)

% of FSR

% of FSR

%

% of FSR

Bits

% of FSR/%V

CC

% of FSR/%V

DD

% of FSR

ppm of FSR/°C

ppm/°C

ppm of FSR/°C

ppm of FSR/°C

% of FSR

% of FSR

±30

±15

±0.012

±0.012

4

2.5

10

*

*

*

350

1

8

4

*

*

*

*

*

8

4

µs

µs

V/µs

ns

µs

±10

±5

0.15

Indefinite

*

0 to +10

±5, ±10

*

*

*

*

*

*

*

*

*

V

V

V

mA

0 to –2

±1

4.0

2.45

±2.5

*

*

*

*

*

mA

mA

kΩ

kΩ

V

The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes

no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change

without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant

any BURR-BROWN product for use in life support devices and/or systems.

®

DAC707/708/709

2

与本文相关的文章

发布评论

评论列表 (0)

  1. 暂无评论