Datasheet > ML2330

ML2330

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
MICRO-LINEAR		/
页数	文件大小	规格书
7页	213K
描述
Selectable Dual 3V/3.3V/5V 8-Bit DACs

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ML2330 数据手册

ML2330

VOLTAGE REFERENCE

POWER DOWN MODE

A bandgap voltage reference is incorporated on the

ML2330. It is trimmed for zero temperature coefficient at

25°C to minimize output voltage drift over the specified

operating temperature range.

There are three power-down modes in the ML2330. By

clearing the control bits P1-P0 (Table 3.2), the entire chip

will be powered down with a supply current less than

5µA. Individual DACs can also be powered down to save

power (1.75mA per DAC).

OUTPUT BUFFER AND GAIN SETTING

The output buffer converts the DAC output current to a

voltage output using a resistive network. The outputs can

swing from GND +0.02V to either 2.02V (3V) or 4.02V

(5V). The DAC transfer function is:

K ×DATA

+ 0.02

OUT

256

where K = 2 if V = 3V and K = 4 if V = 5V

In the 3V operation, the amplifier outputs will settle to

1/2LSB in 10µs when loads are greater than 1ký (2ký for

5V operation) and capacitive loads smaller than 100pF.

GAIN ERROR

The graph below shows how gain error varies with

temperature when V = 3.3V.

Gain Error vs Temperature

0.4

0.3

0.2

0.1

–0.0

–0.1

–0.2

–0.3

–0.4

–0.5

–0.6

–0.7

–0.8

–0.9

–1.0

–40

–20

100

TEMPERATURE ( C)

1...3 4 567

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