3 MSPS,10-/12-Bit
ADCs in 8-Lead TSOT
AD7273/AD7274
FUNCTIONAL BLOCK DIAGRAM
FEATURES
Throughput rate: 3 MSPS
V
DD
AGND
Specified for VDD of 2.35 V to 3.6 V
Power consumption
11.4 mW at 3 MSPS with 3 V supplies
Wide input bandwidth
70 dB SNR at 1 MHz input frequency
Flexible power/serial clock speed management
No pipeline delays
10-/12-BIT
SUCCESSIVE
APPROXIMATION
ADC
V
T/H
IN
V
REF
High speed serial interface
SCLK
SDATA
CS
SPI®-/QSPI™-/MICROWIRE™-/DSP-compatible
Temperature range: −40°C to +125°C
Power-down mode: 0.1 μA typ
8-lead TSOT package
CONTROL
LOGIC
AD7273/AD7274
8-lead MSOP package
DGND
Figure 1.
GENERAL DESCRIPTION
Table 1.
Part Number
AD72731
AD72741
AD7276
The AD7273/AD7274 are 10-/12-bit, high speed, low power,
successive approximation ADCs, respectively. The parts operate
from a single 2.35 V to 3.6 V power supply and feature
throughput rates of up to 3 MSPS. Each part contains a low
noise, wide bandwidth track-and-hold amplifier that can handle
input frequencies in excess of 55 MHz.
Resolution
Package
10
12
12
10
8
8-lead MSOP
8-lead MSOP
8-lead MSOP
8-lead MSOP
8-lead MSOP
8-Lead TSOT
8-Lead TSOT
6-Lead TSOT
6-Lead TSOT
6-Lead TSOT
AD7277
AD7278
The conversion process and data acquisition are controlled
1 Parts contain external reference pin.
using
and the serial clock, allowing the devices to interface
CS
with microprocessors or DSPs. The input signal is sampled on
the falling edge of , and the conversion is also initiated at this
CS
point. The conversion rate is determined by the SCLK. There
are no pipeline delays associated with these parts.
PRODUCT HIGHLIGHTS
1. 3 MSPS ADCs in an 8-lead TSOT package.
2. High throughput with low power consumption.
3. Flexible power/serial clock speed management.
The AD7273/AD7274 use advanced design techniques to
achieve very low power dissipation at high throughput rates.
Allows maximum power efficiency at low throughput rates.
4. Reference can be driven up to the power supply.
5. No pipeline delay.
The reference for the parts is applied externally and can be in
the range of 1.4 V to VDD. This allows the widest dynamic input
range to the ADC.
6. The parts feature a standard successive approximation ADC
with accurate control of the sampling instant via a
input
CS
and once-off conversion control.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registeredtrademarks arethe property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
www.analog.com
© 2005 Analog Devices, Inc. All rights reserved.
5秒后页面跳转
MAX487芯片引脚图及功能、应用领域详解
IR2110驱动芯片引脚图及功能、电路图详解
74LS74是什么芯片 74LS74引脚图及功能表
CD4511芯片引脚图及功能、电路图解析
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
