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參數(shù)資料
| 型號(hào)： | NTE2055 |
| 廠商： | NTE Electronics, Inc. |
| 英文描述： | Quadruple Operational Amplifier, Enhanced Voltage 14-TSSOP -40 to 125 |
| 中文描述： | 集成電路的CMOS，3 1 / 2位的A / D轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 1/4頁(yè) |
| 文件大?。?/td> | 29K |
| 代理商： | NTE2055 |
NTE2055
Integrated Circuit
CMOS, 3
1
/
2
Digit A/D Converter
Description:
The NTE2055 is a high performance, low power, 3
1
/
2
digit A/D converter combining both linear CMOS and
digital CMOS circuits on a single monolithic IC. Available in a 24–Lead DIP type package, this device is de-
signed to minimize use of external components. With two external resistors and two external capacitors, the
system forms a dual slope A/D converter with automatic zero correction and automatic polarity.
The NTE2055 is ratiometric and may be used over a full–scale range from 1.999V to 199.9mV. Systems using
this device may operate over a wide range of power supply voltages for ease of use with batteries, or with stan-
dard 5V supplies. The output drive conforms with standard B–Series CMOS specifications and can drive a
low–power Schottky TTL load.
The high impedance MOS inputs allow applications in current and resistance meters as well as voltmeters.
In addition to DVM/DPM applications, the NTE2055 finds use in digital thermometers, digital scales, remote
A/D, A/D control systems, and in MPU systems.
Features:
Accuracy:
±
0.05% of Reading
±
1 Count
Two Voltage Ranges: 1.999V and 199.9mV
Up to 25 Conversions /s
Z
in
> 100M
Auto–Polarity and Auto–Zero
Single Positive Voltage Reference
Standard B–Series CMOS Outputs: Drives One Low Power Schottky Load
Uses On–Chip System Clock, or External Clock
Wide Supply Range: e.g.,
±
4.5V to
±
8.0V
Overrange and Underrange Signals Available
Operates in Auto Ranging Circuits
Operates with LED and LCD Displays
Low External Component Count
Chip Complexity: 1326 FETs
Absolute Maximum Ratings:
DC Supply Voltage, V
DD
to V
EE
Voltage, Ant Pin, Referenced to V
EE
, V
DC Input Current, Per Pin, I
in
Operating Temperature Range, T
A
Storage Temperature Range, T
stg
Note
1. This device contains circuitry to protect the inputs against damage due to high static voltages or electric
fields; however, it is advised that normal precautions be taken to avoid applications of any voltage higher
than maximum rated voltages to this high impedance circuit. For proper operation it is recommended that
V
in
and V
out
be constrained to the range V
EE
≤
(V
in
or V
out
)
≤
V
DD
.
Recommended Operating Conditions:
(V
SS
= 0 or V
EE
)
DC Supply Voltage
V
DD
to Analog GND, V
DD
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
V
EE
to Analog GND, V
EE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clock Frequency, f
Clk
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Zero Offset Correction Capacitor, C
o
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–0.5V to +18V
–0.5V to V
DD
+0.5V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
10mA
–40
°
to +85
°
C
–65
°
to +150
°
C
+5.0 to 8.0V
–2.8 to –8.0V
32 to 400kHz
0.1
±
20%
μ
F
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