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參數資料
| 型號： | PCA8591T |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 8-bit A/D and D/A converter |
| 中文描述： | 8位A / D和D / A轉換器 |
| 文件頁數： | 3/28頁 |
| 文件大小： | 221K |
| 代理商： | PCA8591T |
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1998 Jul 02
3
Philips Semiconductors
Product specification
8-bit A/D and D/A converter
PCF8591
1
FEATURES
Single power supply
Operating supply voltage 2.5 V to 6 V
Low standby current
Serial input/output via I
2
C-bus
Address by 3 hardware address pins
Sampling rate given by I
2
C-bus speed
4 analog inputs programmable as single-ended or
differential inputs
Auto-incremented channel selection
Analog voltage range from V
SS
to V
DD
On-chip track and hold circuit
8-bit successive approximation A/D conversion
Multiplying DAC with one analog output.
2
APPLICATIONS
Closed loop control systems
Low power converter for remote data acquisition
Battery operated equipment
Acquisition of analog values in automotive, audio and
TV applications.
3
GENERAL DESCRIPTION
The PCF8591 is a single-chip, single-supply low power
8-bit CMOS data acquisition device with four analog
inputs, one analog output and a serial I
2
C-bus interface.
Three address pins A0, A1 and A2 are used for
programming the hardware address, allowing the use of
up to eight devices connected to the I
2
C-bus without
additional hardware. Address, control and data to and from
the device are transferred serially via the two-line
bidirectional I
2
C-bus.
The functions of the device include analog input
multiplexing, on-chip track and hold function, 8-bit
analog-to-digital conversion and an 8-bit digital-to-analog
conversion. The maximum conversion rate is given by the
maximum speed of the I
2
C-bus.
4
ORDERING INFORMATION
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
PCA8591P
PCA8591T
DIP16
SO16
plastic dual in-line package; 16 leads (300 mil); long body
plastic small outline package; 16 leads; body width 7.5 mm
SOT38-1
SOT162-1
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