LM12458CIV National Semiconductor, LM12458CIV Datasheet - Page 20
![A/D Converter (A-D) IC](/photos/19/1/190116/3833522_sml.gif)
LM12458CIV
Manufacturer Part Number
LM12458CIV
Description
A/D Converter (A-D) IC
Manufacturer
National Semiconductor
Datasheet
1.LM12458CIV.pdf
(36 pages)
Specifications of LM12458CIV
Resolution (bits)
13bit
Sampling Rate
114kSPS
Input Channel Type
Differential, Single Ended
Data Interface
Parallel
No. Of Pins
44
Input Channels Per Adc
8
Mounting Type
Surface Mount
No. Of Channels
1
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Company
Part Number
Manufacturer
Quantity
Price
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LM12458CIV
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NS
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Part Number:
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Texas Instruments
Quantity:
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Part Number:
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Manufacturer:
NS/国半
Quantity:
20 000
Company:
Part Number:
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Manufacturer:
Texas Instruments
Quantity:
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Company:
Part Number:
LM12458CIVX/NOPB
Manufacturer:
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www.national.com
Timing Diagrams
INT, DMARQ, D0–D15 outputs.
10: ALE low to WR low
V
1, 3: CS or Address valid to ALE low set-up time.
2, 4: CS or Address valid to ALE low hold time.
5: ALE pulse width
6: RD high to next ALE high
7: ALE low to RD low
8: RD pulse width
9: RD high to next RD or WR low
A
+ = V
D
+ = +5V, t
R
= t
F
= 3 ns, C
L
= 100 pF for the
FIGURE 10. Multiplexed Data Bus
20
11: WR pulse width
12: WR high to next ALE high
13: WR high to next WR or RD low
14: Data valid to WR high set-up time
15: Data valid to WR high hold time
16: RD low to data bus out of TRI-STATE
17: RD high to TRI-STATE
18: RD low to data valid (access time)
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