AK8451 查看數據表（PDF） - Asahi Kasei Microdevices

零件编号

产品描述 (功能)

生产厂家

AK8451

1 channel-input 16 bit 6MSPS ADC

Asahi Kasei Microdevices 

[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

1 channel

Range

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.)

Resolution

… Gain Adjust

8 Bit

Adjustable Range

0 dB ~ +13.9 dB (typ.) (1.0× ~ 4.9×)

Resolution

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)

… Power Dissipation

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

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

… Operating Temperature Range

0 °C ~ +70 °C

… Package

28 Pin QFN

… VREF Output for CCD:

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

1.1V±100mV。10mAmax.

MS0937-E-01

1

2011/04

Share Link: