Datasheet > ADADC85C-122

ADADC85C-122

更新时间： 2024-11-29 14:47:35

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
12页	1080K
描述
IC 2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, CDIP32, SIDE BRAZED, CERAMIC, DIP-32, Analog to Digital Converter

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ADADC85C-122 数据手册

Fast, Complete

12-Bit A/D Converters

AD ADC84/AD ADC85

FEATURES

PERFORMANCE

Complete 12-bit A/D converter with reference and clock

Fast successive approximation conversion: 10 µs or 5 µs

Buried Zener reference for long-term stability and low

Gain TC: 10 ppm/°C

Max nonlinearity: < 0.012ꢀ

Low power: 880 mW typ

Low chip count—high reliability

Industry-standard pinout

Z models for 12 V operation available

MIL-STD-883B processing available

VERSATILITY

Negative true parallel logic outputs

Short cycle capability

Precision +6.3 V reference for external applications

PRODUCT DESCRIPTION

Figure 1. Functional Block Diagram

The AD ADC84/AD ADC85 series devices are high speed, low cost

12-bit successive approximation analog-to-digital converters that

include an internal clock, reference, and comparator. Its hybrid IC

design utilizes MSI digital and linear monolithic chips in

conjunction with a 12-bit monolithic DAC to provide modular

performance and versatility with IC size, price, and reliability.

The AD ADC84 and AD ADC85C are specified for operation over

the ±°C to +7±°C temperature range. The AD ADC85 and

AD ADC85S are specified for the –25°C to +85°C and –55°C to

+125°C ranges, respectively. The serial output function is no longer

supported on the AD ADC84/AD ADC85 after date code 9623.

PRODUCT HIGHLIGHTS

Important performance characteristics of the AD ADC84/

AD ADC85 series include maximum linearity error of ±±.±12ꢀ%

gain TC below 15 ppm/°C at 25°C% typical power dissipation of

88± mW% and conversion time of less than 1± µs for the 12-bit

versions. Of considerable significance in severe and aerospace

applications is the guaranteed performance from –55°C to +125°C

of the AD ADC85S, which is also available with environmental

screening. Monotonic operation of the feedback DAC guarantees

no missing codes over temperature ranges of ±°C to +7±°C, –25°C

to +85°C, and –55°C to +125°C.

1. The AD ADC84/ AD ADC85 series devices are complete

12-bit ADCs. No external components are required to perform

a conversion.

2. The AD ADC84/ AD ADC85 directly replaces other devices of

this type with significant increases in performance.

3. The fast conversion rates of the AD ADC84 and AD ADC85

(1± μs) make them an excellent choice for applications

requiring high system throughput rates.

The design of the AD ADC84/AD ADC85 includes scaling resistors

that provide analog input signal ranges of ±2.5 V, ±5 V, ±1± V, ± V to

+5 V, or ± V to +1± V. The 6.3 V precision reference, which can be

used for external applications, and the input buffer amplifier add

flexibility and value. All digital signals are fully DTL and TTL

compatible, and the data output is negative-true and available in

parallel form.

4. The internal buried Zener reference is laser trimmed to 6.3 V

±±.1ꢀ and ±1± ppm/°C typical TC. The reference is available

externally and can provide up to 1 mA.

5. The integrated package construction provides high quality and

reliability with small size and weight.

6. The monolithic 12-bit feedback DAC is used for reduced chip

count and higher reliability.

The AD ADC84/AD ADC85 are available in a performance grade

specified for 12-bit accuracy (±±.±12ꢀ ꢁSR max) with 1± µs

maximum conversion time.

7. The AD ADC85S/883B comes processed to MIL-STD-883,

Class B requirements.

Rev. B

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

registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.326.8703

www.analog.com

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与ADADC85C-122相关器件

型号	品牌	获取价格	描述	数据表
ADADC85CZ-10	ADI	获取价格	IC 1-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, CDIP32, DH-32E, Analo
ADADC85S-10	ADI	获取价格	FAST, COMPLETE 12-BIT A/D CONVERTERS
ADADC85S-10	ROCHESTER	获取价格	1-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, CDIP32, DH-32E
ADADC85S-12	ADI	获取价格	FAST, COMPLETE 12-BIT A/D CONVERTERS
ADADC85S-12/883B	ADI	获取价格	FAST, COMPLETE 12-BIT A/D CONVERTERS
ADADC85SZ-10	ROCHESTER	获取价格	1-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, CDIP32, DH-32E
ADADC85SZ-12	ADI	获取价格	2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, CDIP32
ADADC85SZ-12	ROCHESTER	获取价格	2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, CDIP32, SIDE BRAZED, CERAMIC, D
ADADC85SZ12/883	ADI	获取价格	IC 2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, CDIP32, SIDE BRAZED, CERAMIC
ADADC85SZ-12/883B	ETC	获取价格	A/D CONVERTER

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