Datasheet > AK8451

AK8451

更新时间： 2022-06-03 03:10:23

品牌	Logo	应用领域
AKM		/
页数	文件大小	规格书
42页	705K
描述
1 channel-input 16 bit 6MSPS ADC

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AK8451 数据手册

[AK8451]

AK8451

1 channel-input 16 bit 6MSPS ADC

Device Outline

■AFE Block

The AK8451 is a +3.3 V, Two Channel 16 Bit 6MSPS ADC which integrates on-chip Offset

Adjust DAC, Gain Adjust PGA, CDS circuit and <4.5~5.7V> 3 channel LED Drivers.

■ LED Driver Block

This product is the 3 channel LED driver who drives the LED of the anode common in the

constant current. The current to pass for each channel can be adjusted by the external resistance

and the register setting. Also, it has the control pins which turn on or off the current.

Features

■AFE Block

ꢀ

CCD I/F

Number of Channels

Range

1 channel

1.98 Vpp (typ.)

Signal Input Range

0~3.3V @ DC Direct Coupled input mode at AVDD = 3.3 V

Integrated On-chip CDS circuit

Compatible with both Positive and Negative signal polarities

ADC

ꢀ

Maximum Conversion Rate

6 MSPS

Resolution

16 Bit (Straight Binary Code)

Black Level Correction DAC

Correctable Range

± 240 mV (typ.)

8 Bit

Resolution

ꢀ

Gain Adjust

Adjustable Range

Resolution

0 dB ~ +13.9 dB (typ.) (1.0× ~ 4.9×)

6 Bit

ꢀ

Total Performance ( Input ~ Video ADC )

Output Noise

Data Output

Power Supplies

5 LSBs rms (typ.) @ PGA Gain = 0 dB setting

2 bit wide or 4bit wide

ꢀ

Analog part: +3.3V ±5 % / Digital Output part: +3.3V ±0.3V

ꢀ

CPU I/F

3-Wire Serial Interface (Write Only)

Clock, Data are commonly shared with A/D Data Output pins

Power Dissipation

132mW (typ.) with DC Direct Coupled input mode at AVDD= 3.3V

ꢀ

Operating Temperature Range

Package

0 °C ~ +70 °C

28 Pin QFN

Pin pitch: 0.4 mm, Mold size: 4 mm × 4 mm

1.1V±100mV。10mAmax.

ꢀ

VREF Output for CCD:

MS0937-E-01

2011/04

12 3 4 5 6 7...42

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