Datasheet > MP7643AS

MP7643AS

更新时间： 2024-02-17 17:11:23

品牌	Logo	应用领域
艾科嘉 - EXAR		转换器光电二极管信息通信管理
页数	文件大小	规格书
12页	134K
描述
4-Channel, Programmable Gain Voltage Output, 15 MHz Input Bandwidth 8-Bit DACs with Multiplying Parallel Digital Data Port

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MP7643AS 技术参数

生命周期：	Obsolete	Reach Compliance Code：	unknown
风险等级：	5.84	最大模拟输出电压：	3 V
最小模拟输出电压：	-3 V	转换器类型：	D/A CONVERTER
输入位码：	COMPLEMENTARY BINARY	输入格式：	PARALLEL, 8 BITS
JESD-30 代码：	R-PDSO-G28	标称负供电电压：	-5 V
位数：	8	功能数量：	1
端子数量：	28	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
认证状态：	Not Qualified	标称安定时间 (tstl)：	0.15 µs
标称供电电压：	5 V	表面贴装：	YES
技术：	BICMOS	温度等级：	INDUSTRIAL
端子形式：	GULL WING	端子位置：	DUAL
Base Number Matches：	1

MP7643AS 数据手册

MP7643

4-Channel, Programmable Gain

Voltage Output, 15 MHz Input Bandwidth

8-Bit DACs with Multiplying

Parallel Digital Data Port

FEATURES

• DNL = +0.5 LSB, INL = +1 LSB (typ)

• DACs Matched to +0.5% (typ)

• Low Harmonic Distortion: 0.25% typical with

• Programmable Gain

• 4 Independent 2-Quadrant Multiplying 8-Bit DACs

with Output Amplifiers

= 1 V p-p @ 1 MHz

• Dual Positive (+10 V and +5 V) Supplies or

Dual (+5 V) Supplies Capability

• High Speed:

REF

• Latch-Up Free

• ESD Protection: 2000 V Minimum

–

12.5 MHz Digital Clock Rate

Settling Time: 150ns to 8-bit

APPLICATIONS

REF to OUT

(typ)

• Direct High-Frequency Automatic Gain Control

• Video AGC & CCD Level AGC

• Convergence Adjustment for High-Resolution

Monitors (Workstations)

–

Voltage Reference Input Bandwidth:

15 MHz

• Very Low Noise Gain Control

• Low Power: 80mW

• Low AC Voltage Reference Feedthrough

• Excellent Channel-to-Channel Isolation

• Multiplier Replacement

GENERAL DESCRIPTION

The MP7643 is ideal for digital gain control of high frequency

analog signals such as video, composite video and CCD. The

device includes 4-channels of high speed, wide bandwidth, two

quadrant multiplying, 8-bit accurate digital-to-analog converter.

It includes an output drive buffer per channel capable of driving a

+1mA (typ) load. DNL of better than +0.5 LSB is achieved with a

channel-to-channelmatchingoftypically0.5%. Stability, match-

ing, and precision of the DACs are achieved by using MPS’ thin

film technology. Excellent channel-to-channel isolation is also

achieved with MPS’ BiCMOS process which cannot be

achieved using a typical CMOS technology.

fast output settling time of 150 ns, and excellent V_REF

feedthrough isolation. The negative feedback terminal of the

output op amp is available for user gain control. In addition, low

distortion in the order of 0.25% with a 1 V p-p, 1 MHz signal is

achieved.

The combination of a constant input Z and the ability to vary

V_REFNwithin V_CC–1.8 V to V_EE+1.5 V allows flexibility for opti-

mum system design.

The MP7643 is fabricated on a junction isolated, high speed

BiCMOS (BiCMOS IV^TM) process with thin film resistors. This

process enables precision high speed analog/digital (mixed-

mode) circuits to be fabricated on the same chip.

An open loop architecture (patent pending) provides wide

small signal bandwidth from V_REFto output up to 15 MHz (typ),

ORDERING INFORMATION

Package

Type

Temperature

Range

INL

(LSB)

DNL

(LSB)

Gain Error

(% FSR)

Part No.

–40 to +85°C

SOIC

MP7643AS

MP7643AN

+0.5

+1.5

Plastic Dip

Rev. 1.00

12 3 4 5 6 7...12

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