MAX6133BASA50 データシートの表示（PDF） - Maxim Integrated
部品番号
コンポーネント説明
メーカー
MAX6133BASA50 Datasheet PDF : 13 Pages
| |||
3ppm/°C, Low-Power, Low-Dropout
Voltage Reference
Negative Low-Power Voltage Reference
As shown in Figure 2, the MAX6133 can be used to
develop a negative voltage reference using the
MAX400, a rail-to-rail op-amp with low power, low
noise, and low offset. The circuit only provides a good
negative reference and is ideal for space- and cost-
sensitive applications since it does not use resistors.
0.1µF
POSITIVE SUPPLY
V+
0.1µF
MAX400
IN
MAX6133
OUT
GND
-VOUT
0.1µF
0.1µF
V-
Temperature Coefficient vs.
Operating Temperature Range
for a 1LSB Maximum Error
In a data converter application, the converter’s refer-
ence voltage must stay within a certain limit to keep the
error in the data converter smaller than the resolution
limit through the operating temperature range. Figure 3
shows the maximum allowable reference-voltage tem-
perature coefficient that keeps the conversion error to
less than 1LSB. This is a function of the operating tem-
perature range (TMAX - TMIN) with the converter resolu-
tion as a parameter. The graph assumes the
reference-voltage temperature coefficient as the only
parameter affecting accuracy. In reality, the absolute
static accuracy of a data converter is dependent on the
combination of many parameters such as integral non-
linearity, differential nonlinearity, offset error, gain error,
as well as voltage reference changes.
Chip Information
TRANSISTOR COUNT: 656
PROCESS: BiCMOS
Figure 2. Negative Low-Power Voltage Reference
10,000
1000
100
TEMPERATURE
COEFFICIENT
10
(ppm/°C)
1
0.1
0.01
1
10
OPERATING TEMPERATURE RANGE (TMAX - TMIN) (°C)
Figure 3. Temperature Coefficient vs. Operating Temperature Range for a 1LSB Maximum Error
8 BIT
10 BIT
12 BIT
14 BIT
16 BIT
18 BIT
20 BIT
100
______________________________________________________________________________________ 11
Share Link: 