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参数资料
| 型号： | TLC7226INE4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | DAC |
| 英文描述： | PARALLEL, 8 BITS INPUT LOADING, 7 us SETTLING TIME, 8-BIT DAC, PDIP20 |
| 封装： | 0.300 INCH, ROHS COMPLIANT, PLASTIC, DIP-20 |
| 文件页数： | 3/21页 |
| 文件大小： | 440K |
| 代理商： | TLC7226INE4 |
TLC7226C, TLC7226I, TLC7226M
QUADRUPLE 8BIT DIGITALTOANALOG CONVERTERS
SLAS060F JANUARY 1995 REVISED APRIL 2009
11
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
bipolar output operation using external amplifier
Each of the DACs of the TLC7226 can also be individually configured to provide bipolar output operation, using
an external amplifier and two resistors per channel. Figure 9 shows a circuit used to implement offset binary
coding (bipolar operation) with DAC A of the TLC7226. In this case:
V
O +
1
) R2
R1
D
A
V
ref *
R2
R1
V
ref
with R1
+ R2
V
O +
2D
A *
1
V
ref
where D
A
is a fractional representation of the digital word in latch A.
(2)
Mismatch between R1 and R2 causes gain and offset errors. Therefore, these resistors must match and track
over temperature. The TLC7226 can be operated with a single power supply or from positive and negative
power supplies.
15 V
_
+
DAC A
TLC7226
2
4
R2
R1
VO
REF
R1 = R2 = 10 k ±0.1%
_
+
15 V
Figure 9. Bipolar Output Circuit
staircase window comparator
In many test systems, it is important to be able to determine whether some parameter lies within defined limits.
The staircase window comparator shown in Figure 10 is a circuit that can be used to measure the VOH and VOL
thresholds of a TTL device under test. Upper and lower limits on both VOH and VOL can be programmed using
the TLC7226. Each adjacent pair of comparators forms a window of programmable size (see Figure 11). When
the test voltage (Vtest) is within a window, then the output for that window is higher. With a reference of 2.56 V
applied to the REF input, the minimum window size is 10 mV.
相关PDF资料 |
PDF描述 |
|---|---|
| TLC7226IN | PARALLEL, 8 BITS INPUT LOADING, 7 us SETTLING TIME, 8-BIT DAC, PDIP20 |
| TLC7226CDWR | PARALLEL, 8 BITS INPUT LOADING, 7 us SETTLING TIME, 8-BIT DAC, PDSO20 |
| TLC7226CDWG4 | PARALLEL, 8 BITS INPUT LOADING, 7 us SETTLING TIME, 8-BIT DAC, PDSO20 |
| 5962-8780201RA | QUAD, PARALLEL, 8 BITS INPUT LOADING, 8-BIT DAC, CDIP20 |
| 5962-8853201XA | 1-CH 9-BIT FLASH METHOD ADC, PARALLEL ACCESS, CDIP64 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TLC7226M | 制造商:TI 制造商全称:Texas Instruments 功能描述:QUADRUPLE 8-BIT DIGITAL-TO-ANALOG CONVERTERS |
| TLC7226MFKB | 制造商:TI 制造商全称:Texas Instruments 功能描述:QUADRUPLE 8-BIT DIGITAL-TO-ANALOG CONVERTERS |
| TLC7226MFKB/SAMPLE | 制造商:Texas Instruments 功能描述:DAC 4-CH R-2R 8BIT 20LCCC - Rail/Tube |
| TLC7524 | 制造商:TI 制造商全称:Texas Instruments 功能描述:8-BIT MULTIPLYING DIGITAL-TO-ANALOG CONVERTERS |
| TLC7524C | 制造商:TI 制造商全称:Texas Instruments 功能描述:8-BIT MULTIPLYING DIGITAL-TO-ANALOG CONVERTERS |
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