DAC-HF10BMC Murata Power Solutions Inc, DAC-HF10BMC Datasheet

DAC-HF10BMC

Manufacturer Part Number

DAC-HF10BMC

Description

Digital To Analog Converter

Manufacturer

Murata Power Solutions Inc

Datasheets

1.DAC-HF10BMC.pdf (4 pages)

2.DAC-HF12BMM.pdf (7 pages)

3.DAC-HF10BMM.pdf (4 pages)

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Bonase Electronics (HK) Co., Limited

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DAC-HF10BMC

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BOSTOCK HK LIMITED

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DATEL

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FEATURES

• • • • • 8, 10 and 12-Bit resolutions

• • • • • Settling times to 25ns

• • • • • ±20ppm/°C max. gain tempco

• • • • • Unipolar or bipolar operation

• • • • • Current output

• • • • • Internal feedback resistors

• • • • • High-reliability MIL-STD-883 models

GENERAL DESCRIPTION

The DAC-HF Series of hybrid DAC’s are ultra high-speed,

current output devices. They incorporate state-of-the-art

performance in a miniature package, achieving maximum

output settling times of 25ns for the 8 and 10-bit models and

50ns for the 12-bit model. They can be used to drive a

resistor load directly for up to ±1V output or a fast operational

ampifier (such as DATEL’s AM-500) for higher voltage outputs

with sub-microsecond settling times. A tapped feedback

resistor and a bipolar offset resistor are included internally to

give five programmable output voltage ranges with an

external operational amplifier.

The DAC-HF design combines proven hybrid construction

techniques with advanced circuit design to realize high-speed

current switching. The design incorporates fast PNP current

switches driving a low-impedance R-2R thin-film ladder

network. The nichrome thin-film resistor network is

deposited by electron beam evaporation on a low-

capacitance substrate to assure high-speed performance.

The resistors are then functionally trimmed by laser for

optimum linearity.

INNOVATION and EX C ELL E N C E

BIT

+15V SUPPLY

MSB

CURRENT SWITCHES

LADDER NETWORK

DIGITAL INPUTS

THIN-FILM R-2R

FAST PNP

–15V SUPPLY

REFERENCE

Figure 1. Functional Block Diagram

–10V

GROUNDS

LSB

REFERENCE

CONTROL

CIRCUIT

2kW

FOR DAC-HF8B, PINS 9, 10, 11 & 12 ARE NO CONNECTION

FOR DAC-HF10B, PINS 11 & 12 ARE NO CONNECTION

4kW

2kW

* See note in Figure 1

INPUT/OUTPUT CONNECTIONS, DAC-HF12B

Digital-to-Analog Converters

FUNCTION

BIT 1 (MSB)

BIT 2

BIT 3

BIT 4

BIT 5

BIT 6

BIT 7

BIT 8

BIT 9 *

BIT 10 *

BIT 11 *

BIT 12 (LSB) *

REFERENCE OUT

(–10.05V±0.05V)

BIPOLAR

OFFSET

20V RANGE

10V RANGE

OUTPUT

REFERENCE IN

Ultra-Fast, 8/10/12-Bit

DAC-HF Series

FUNCTION

GROUND

–15V SUPPLY

REFERENCE OUT

BIPOLAR OFFSET

10V RANGE

OUTPUT

20V RANGE

REFERENCE IN

GROUND

+15V SUPPLY

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