Low Power and Compact CameraChip™ Sensor
with Industry's Smallest Global Shutter Pixel
OV7251 VGA product brief
lead free
available in
a lead-free
package
The OV7251 is a small form factor, low power
CameraChip™ sensor that uses a global shutter to
reduce or eliminate unwanted image artifacts, which
occur with traditional rolling shutter image sensors as a
result of motion during image capture. The sensor's
global shutter and excellent low-light sensitivity allow it
to be used for any application that has a need for
gesture detection, head and eye tracking, and depth and
motion detection.
The OV7251's compact form factor makes it a highly
attractive camera solution for narrow-bezel
applications such as smartphones, tablets, notebooks
and Ultrabooks. Likewise, the sensor's low-power
consumption makes it an ideal dedicated gesture sensor
for similar application areas.
Leveraging the industry's smallest global shutter pixel,
the black and white OV7251 is capable of capturing
VGA (640x480) resolution video at 100 frames per
second (fps), QVGA (320x240) at 180 fps with binning,
and QQVGA (160x120) at 360 fps with binning and
skipping. The OV7251's high frame rates make it an
ideal solution for low-latency machine vision
applications.
The 1/7.5-inch OV7251 features multiple low-power
modes, including light sensing mode and ultra-low power
standby mode. In light sensing mode, the OV7251
behaves like an Ambient Light Sensor (ALS), which
wakes the sensor up from "sleep mode" only when a
change in light has been detected. Similarly, in ultra-low
power mode the sensor can reduce the resolution and
frame rates to further reduce power consumption.
Find out more at www.ovt.com.
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Cellular Phones
Digital Still Cameras (DSC)
Digital Video Camcorders (DVC)
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PC Multimedia
Tablets
Wearable Devices
Applications
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3 µm x 3 µm pixel with
OmniPixel3-GS™ technology
automatic black level calibration (ABLC)
programmable controls for frame rate,
mirror and flip, cropping and windowing
support output formats: 8-/10-bit RAW
support for image sizes: 640x480,
320x240, 160x120
fast mode switching
supports horizontal and vertical 2:1
and 4:1 monochrome subsampling
ambient light sensor mode
ULPM mode
supports 2x2 monochrome binning
one-lane MIPI serial output interface
one-lane LVDS serial output interface
embedded 256 bits of one-time
programmable (OTP) memory for
part identification
two on-chip phase lock loops (PLLs)
built-in 1.5V regulator for core
PWM
built-in strobe control
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Product Features
Functional Block Diagram
¬OV07251-A35A
(B&W, lead-free, 35-pin CSP3)
¬OV07251-G04A
(B&W, chip probing, 200 µm
backgrinding, reconstructed wafer)
Ordering Information
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active array size: 640 x 480
power supply:
- core: 1.5V (optional)
- analog: 2.8V (nominal)
- I/O: 1.8V (nominal)
power requirements:
- active: 117 mW (VGA @ 100 fps)
- standby: 15 µA for AVDD,
40 µA for DOVDD without input clock,
700 µA for DOVDD with input clock
- XSHUTDOWN: 5 µA for AVDD,
5 µA for DOVDD
temperature range:
- operating: -30°C to +70°C junction
temperature
- stable image: 0°C to +50°C junction
temperature
output interface: 1-lane MIPI/LVDS
serial output
output formats: 10-bit B&W RAW
lens size: 1/7.5"
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input clock frequency: 6 ~ 27 MHz
lens chief ray angle: 29° non-linear
max S/N ratio: 39 dB
dynamic range: 69.6 dB @ 8x gain
maximum image transfer rate:
- 640x480: 100 fps
sensitivity:
- 7190 mV/(µW.cm-2.sec) @ 850 nm
- 2800 mV/lux-sec) @ 530 nm
scan mode: progressive
maximum exposure interval: 502 x TROW
pixel size: 3 µm x 3 µm
dark current: 350 e-/s
@ 50°C junction temperature
image area: 1968 µm x 1488 µm
package dimensions:
3910 µm x 3410 µm
Product Specifications
Version 1.2, October, 2014
OmniVision reserves the right to make changes to their products or to discontinue any product or
service without further notice. OmniVision and the OmniVision logo are registered trademarks of
OmniVision Technologies, Inc. CameraChip and OmniBSI-2 are trademarks of OmniVision
Technologies, Inc. All other trademarks are the property of their respective owners.
4275 Burton Drive
Santa Clara, CA 95054
USA
Tel: + 1 408 567 3000
Fax: + 1 408 567 3001
www.ovt.com
OV7251
OV7251
image sensor array output
interface
column
sample/hold
row select
PLL
control register bank regulator
SCCB slave interface system control logic timing generator
gain
control
FSIN/VSYNC
TM
XSHUTDOWN
EXTCLK
(6-27 MHz)
STROBE
SIOC
SIOD
PWM
ULPM
MCP/N
MDP/N
image
array AMP
black level
calibration
10-bit
ADC
FIFO
MIPI
