Product
Folder
Sample &
Buy
Technical
Documents
Support &
Community
Tools &
Software
AM26LS32AC, AM26LS32AI, AM26LS32AM
AM26LS33AC, AM26LS33AM
SLLS115F – OCTOBER 1980 – REVISED SEPTEMBER 2016
AM26LS32Ax, AM26LS33Ax Quadruple Differential Line Receivers
1 Features
3 Description
•
The AM26LS32Ax and AM26LS33Ax devices are
quadruple differential line receivers for balanced and
unbalanced digital data transmission. The enable
function is common to all four receivers and offers a
choice of active-high or active-low input. The 3-state
outputs permit connection directly to a bus-organized
system. Fail-safe design ensures that, if the inputs
are open, the outputs always are high.
1
•
•
•
•
•
•
•
•
•
AM26LS32A Devices Meet or Exceed the
Requirements of ANSI TIA/EIA-422-B, TIA/EIA423-B, and ITU Recommendations V.10 and V.11
AM26LS32A Devices Have ±7-V Common-Mode
Range With ±200-mV Sensitivity
AM26LS33A Devices Have ±15-V Common-Mode
Range With ±500-mV Sensitivity
Input Hysteresis 50 mV Typical
Operate From a Single 5-V Supply
Low-Power Schottky Circuitry
3-State Outputs
Complementary Output-Enable Inputs
Input Impedance 12 kΩ Minimum
Open Input Fail-Safe
2 Applications
•
•
•
•
•
High-Reliability Automotive Applications
Factory Automation
ATM and Cash Counters
Smart Grids
AC and Servo Motor Drives
Compared to the AM26LS32 and the AM26LS33, the
AM26LS32A and AM26LS33A incorporate an
additional stage of amplification to improve sensitivity.
The input impedance has been increased, resulting in
less loading of the bus line. The additional stage has
increased propagation delay; however, this does not
affect interchangeability in most applications.
The
AM26LS32AC
and
AM26LS33AC
are
characterized for operation from 0°C to 70°C. The
AM26LS32AI is characterized for operation from
–40°C
to
85°C.
The
AM26LS32AM
and
AM26LS33AM are characterized for operation over
the full military temperature range of –55°C to 125°C.
Device Information(1)
PART NUMBER
AM26LS3xAC
AM26LS32AI
AM26LS32AC
AM26LS3xAM
PACKAGE
BODY SIZE (NOM)
PDIP (16)
19.30 mm × 6.35 mm
SOIC (16)
9.90 mm × 3.90 mm
SO (16)
10.20 mm × 5.30 mm
TSSOP (16)
5.00 mm × 4.40 mm
CDIP (16)
21.34 mm × 6.92 mm
LCCC (20)
8.90 mm × 8.90 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Logic Diagram (Positive Logic)
G
G
1A
1B
2A
2B
3A
3B
4A
4B
4
12
2
1
6
7
10
9
14
15
3
5
11
13
1Y
2Y
3Y
4Y
Copyright © 2016, Texas Instruments Incorporated
Pin numbers are for D, N, NS, or PW packages only.
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
AM26LS32AC, AM26LS32AI, AM26LS32AM
AM26LS33AC, AM26LS33AM
SLLS115F – OCTOBER 1980 – REVISED SEPTEMBER 2016
www.ti.com
Table of Contents
1
2
3
4
5
6
7
8
Features ..................................................................
Applications ...........................................................
Description .............................................................
Revision History.....................................................
Pin Configuration and Functions .........................
Specifications.........................................................
1
1
1
2
3
4
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
4
4
4
5
5
6
6
7
Absolute Maximum Ratings ......................................
ESD Ratings ............................................................
Recommended Operating Conditions.......................
Thermal Information .................................................
Electrical Characteristics...........................................
Switching Characteristics ..........................................
Dissipation Ratings ...................................................
Typical Characteristics ..............................................
Parameter Measurement Information .................. 9
Detailed Description ............................................ 11
8.1 Overview ................................................................. 11
8.2 Functional Block Diagram ....................................... 11
8.3 Feature Description................................................. 11
8.4 Device Functional Modes........................................ 11
9
Application and Implementation ........................ 12
9.1 Application Information .......................................... 12
9.2 Typical Application .................................................. 12
10 Power Supply Recommendations ..................... 13
11 Layout................................................................... 13
11.1 Layout Guidelines ................................................. 13
11.2 Layout Example .................................................... 14
12 Device and Documentation Support ................. 15
12.1
12.2
12.3
12.4
12.5
12.6
Related Links ........................................................
Receiving Notification of Documentation Updates
Community Resources..........................................
Trademarks ...........................................................
Electrostatic Discharge Caution ............................
Glossary ................................................................
15
15
15
15
15
15
13 Mechanical, Packaging, and Orderable
Information ........................................................... 15
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision E (October 2007) to Revision F
Page
•
Added Applications section, ESD Ratings table, Feature Description section, Device Functional Modes, Application
and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation
Support section, and Mechanical, Packaging, and Orderable Information section................................................................ 1
•
Changed RθJA values in the Thermal Information table: 73 to 75.7 for (D), 67 to 45.3 (N), 64 to 75.8 (NS), and 108 to
102.7 (PW).............................................................................................................................................................................. 5
2
Submit Documentation Feedback
Copyright © 1980–2016, Texas Instruments Incorporated
Product Folder Links: AM26LS32AC AM26LS32AM AM26LS33AM
AM26LS32AC, AM26LS32AI, AM26LS32AM
AM26LS33AC, AM26LS33AM
www.ti.com
SLLS115F – OCTOBER 1980 – REVISED SEPTEMBER 2016
5 Pin Configuration and Functions
D, J, N, NS, and PW Package
16-Pin SOIC, CDIP, PDIP, SO, and TSSOP
Top View
13
4Y
2Y
5
12
G
2A
6
11
3Y
2B
7
10
3A
GND
8
9
3B
4B
4
19
G
1Y
4
18
4A
G
5
17
4Y
NC
6
16
NC
2Y
7
15
G
2A
8
14
3Y
13
4A
VCC
14
20
3
12
1Y
NC
4B
1
15
11
2
1B
1A
2
VCC
10
16
1A
1
9
1B
3
FK Package
20-Pin LCCC
Top View
3A
3B
NC
GND
2B
Not to scale
Not to scale
NC - No internal connection
Pin Functions
PIN
SOIC, CDIP, PDIP,
NAME
SO, TSSOP
LCCC
1A
2
3
1B
1
1Y
3
2A
I/O
DESCRIPTION
I
RS422/RS485 differential input (noninverting)
2
I
RS422/RS485 differential input (inverting)
4
O
Logic level output
6
8
I
RS422/RS485 differential input (noninverting)
2B
7
9
I
RS422/RS485 differential input (inverting)
2Y
5
7
O
Logic level output
3A
10
13
I
RS422/RS485 differential input (noninverting)
3B
9
12
I
RS422/RS485 differential input (inverting)
3Y
11
14
O
Logic level output
4A
14
18
I
RS422/RS485 differential input (noninverting)
4B
15
19
I
RS422/RS485 differential input (inverting)
4Y
13
17
O
Logic level output
G
12
15
I
Active-Low select
G
4
5
I
Active-High select
GND
8
10
—
Ground
NC
—
1, 6, 11, 16
—
No internal connection
VCC
16
20
—
Power supply
Copyright © 1980–2016, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: AM26LS32AC AM26LS32AM AM26LS33AM
3
AM26LS32AC, AM26LS32AI, AM26LS32AM
AM26LS33AC, AM26LS33AM
SLLS115F – OCTOBER 1980 – REVISED SEPTEMBER 2016
www.ti.com
6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted) (1)
MIN
Supply voltage, VCC (2)
Any differential input
Input voltage, VI
V
V
7
±25
Continuous total power dissipation
V
See Dissipation Ratings
Case temperature, TC, FK package (60 s)
Lead temperature (4)
260
D or N package (10 s)
260
J package (60 s)
300
Storage temperature, Tstg
(2)
(3)
(4)
UNIT
7
±25
Other inputs
Differential input voltage, VID (3)
(1)
MAX
–65
°C
°C
150
°C
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended
Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
All voltage values, except differential voltages, are with respect to the network ground terminal.
Differential voltage values are at the noninverting (A) input terminals with respect to the inverting (B) input terminals.
1.6 mm (1/16 inch) from case
6.2 ESD Ratings
VALUE
V(ESD)
(1)
(2)
Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001
Electrostatic discharge
(1)
±500
Charged-device model (CDM), per JEDEC specification JESD22-C101 (2)
±2000
UNIT
V
JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.
6.3 Recommended Operating Conditions
VCC
Supply voltage
VIH
High-level input voltage
VIL
Low-level input voltage
AM26LS32AC, AM26LS32AI, AM26LS33AC
AM26LS32AM, AM26LS33AM
MIN
NOM
MAX
4.75
5
5.25
4.5
5
5.5
2
UNIT
V
V
0.8
AM26LS32A
±7
AM26LS33A
±15
V
VIC
Common-mode input voltage
IOH
High-level output current
–440
µA
IOL
Low-level output current
8
mA
TA
Operating free-air temperature
AM26LS32AC, AM26LS33AC
4
Submit Documentation Feedback
0
V
70
AM26LS32AI
–40
85
AM26LS32AM, AM26LS33AM
–55
125
°C
Copyright © 1980–2016, Texas Instruments Incorporated
Product Folder Links: AM26LS32AC AM26LS32AM AM26LS33AM
AM26LS32AC, AM26LS32AI, AM26LS32AM
AM26LS33AC, AM26LS33AM
www.ti.com
SLLS115F – OCTOBER 1980 – REVISED SEPTEMBER 2016
6.4 Thermal Information
AM26LS3xAC, AM26LS32AI
THERMAL METRIC (1)
AM26LS32AC
D (SOIC)
N (PDIP)
NS (SO)
PW (TSSOP)
16 PINS
16 PINS
16 PINS
16 PINS
UNIT
75.7
45.3
75.8
102.7
°C/W
35
32.7
32.9
37.8
°C/W
RθJA
Junction-to-ambient thermal resistance
RθJC(top)
Junction-to-case (top) thermal
resistance
RθJB
Junction-to-board thermal resistance
33.3
25.3
36.6
47.7
°C/W
ψJT
Junction-to-top characterization
parameter
6.6
17.8
6
3
°C/W
ψJB
Junction-to-board characterization
parameter
33
25.1
36.3
47.1
°C/W
(1)
For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report.
6.5 Electrical Characteristics
over recommended ranges of VCC, VIC, and operating free-air temperature (unless otherwise noted)
PARAMETER
VIT+
Positive-going input threshold
voltage
VIT–
Negative-going input threshold
VO = 0.45 V , IOL = 8 mA
voltage
Vhys
Hysteresis voltage
(VIT+ – VIT–)
VIK
Enable-input clamp voltage
VOH
MIN TYP (1)
TEST CONDITIONS
VO = VOHmin, IOH = –440 µA
MAX
AM26LS32A
0.2
AM26LS33A
0.5
AM26LS32A
–0.2 (2)
AM26LS33A
–0.5 (2)
VCC = MIN, II = –18 mA
VCC = MIN, VID = 1 V,
VI(G) = 0.8 V, IOH = –440 µA
High-level output voltage
VOL
Low-level output voltage
VCC = MIN, VID = –1 V,
VI(G) = 0.8 V
IOZ
Off-state (high-impedance
state) output current
VCC = MAX
II
Line input current
II(EN)
IH
mV
–1.5
2.7
AM26LS32AM,
AM26LS32AI,
AM26LS33AM
2.5
V
V
50
AM26LS32AC,
AM26LS33AC
UNIT
V
V
IOL= 4 mA
0.4
IOL= 8 mA
0.45
VO = 2.4 V
20
VO = 0.4 V
–20
V
µA
VI = 15 V, other input at –10 V to 15 V
1.2
VI = –15 V, other input at –15 V to 10 V
–1.7
Enable input current
VI = 5.5 V
100
µA
High-level enable current
VI = 2.7 V
20
µA
IL
Low-level enable current
VI = 0.4 V
–0.36
mA
ri
Input resistance
VIC = –15 V to 15 V, one input to ac ground
IOS
Short-circuit output current (3)
VCC = MAX
–85
mA
ICC
Supply current
VCC = MAX, all outputs disabled
70
mA
(1)
(2)
(3)
12
15
–15
52
mA
kΩ
All typical values are at VCC = 5 V, TA = 25°C, and VIC = 0.
The algebraic convention, in which the less positive (more negative) limit is designated as minimum, is used in this data sheet for
threshold levels only.
Not more than one output must be shorted to ground at a time, and duration of the short circuit must not exceed one second.
Copyright © 1980–2016, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: AM26LS32AC AM26LS32AM AM26LS33AM
5
AM26LS32AC, AM26LS32AI, AM26LS32AM
AM26LS33AC, AM26LS33AM
SLLS115F – OCTOBER 1980 – REVISED SEPTEMBER 2016
www.ti.com
6.6 Switching Characteristics
CL = 15 pF, VCC = 5 V, and TA = 25°C (see Parameter Measurement Information; unless otherwise noted)
PARAMETER
MIN
TYP (1)
MAX
UNIT
tPLH
Propagation delay time, low-to-high-level output
20
35
ns
tPHL
Propagation delay time, high-to-low-level output
22
35
ns
tPZH
Output enable time to high level
17
22
ns
tPZL
Output enable time to low level
20
25
ns
tPHZ
Output disable time from high level
21
30
ns
tPLZ
Output disable time from low level
30
40
ns
(1)
All typical values are at VCC = 5 V, TA = 25°C, and VIC = 0.
6.7 Dissipation Ratings
6
PACKAGE
TA ≤ 25°C
POWER RATING
DERATION FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
TA = 125°C
POWER RATING
FK
1375 mW
11 mW/°C
880 mW
275 mW
J
1375 mW
11 mW/°C
880 mW
275 mW
Submit Documentation Feedback
Copyright © 1980–2016, Texas Instruments Incorporated
Product Folder Links: AM26LS32AC AM26LS32AM AM26LS33AM
AM26LS32AC, AM26LS32AI, AM26LS32AM
AM26LS33AC, AM26LS33AM
www.ti.com
SLLS115F – OCTOBER 1980 – REVISED SEPTEMBER 2016
Low-Level Output Voltage, VOL (V)
High-Level Output Voltage, VOH (V)
6.8 Typical Characteristics
High-Level Output Current, IOH (mA)
Low-Level Output Current, IOL (mA)
Figure 2. Low-Level Output Voltage
vs Low-Level Output Current
Figure 1. High-Level Output Voltage
vs High-Level Output Current
Output Voltage, VO (V)
Low-Level Output Votlage, VOL (V)
Load = 8 kΩ to GND
Free-Air Temperature, TA (°C)
Enable G Voltage (V)
Figure 4. Output Voltage vs Enable G Voltage
Figure 3. Low-Level Output Voltage vs Free-Air Temperature
Output Voltage, VO (V)
Output Voltage, VO (V)
Load = 8 kΩ to GND
Load = 1 kΩ to VCC
Enable G Voltage (V)
Enable G Voltage (V)
Figure 5. Output Voltage vs Enable G Voltage
Figure 6. Output Voltage vs Enable G Voltage
Copyright © 1980–2016, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: AM26LS32AC AM26LS32AM AM26LS33AM
7
AM26LS32AC, AM26LS32AI, AM26LS32AM
AM26LS33AC, AM26LS33AM
SLLS115F – OCTOBER 1980 – REVISED SEPTEMBER 2016
www.ti.com
Output Voltage, VO (V)
Output Voltage, VO (V)
Typical Characteristics (continued)
Load = 1 kΩ to VCC
Differential Input Voltage, VID (mV)
Enable G Voltage (V)
Figure 8. AM26LS32A Output Voltage
vs Differential Input Voltage
Input Current, II (mA)
Output Voltage, VO (V)
Figure 7. Output Voltage vs Enable G Voltage
Differential Input Voltage, VID (mV)
Figure 9. AM26LS33A Output Voltage
vs Differential Input Voltage
8
Submit Documentation Feedback
Input Voltage, VI (V)
The unshaded area shows requirements of paragraph 4.2.1
of ANSI Standards EIA/TIA-422-B and EIA/TIA-423-B.
Figure 10. Input Current vs Input Voltage
Copyright © 1980–2016, Texas Instruments Incorporated
Product Folder Links: AM26LS32AC AM26LS32AM AM26LS33AM
AM26LS32AC, AM26LS32AI, AM26LS32AM
AM26LS33AC, AM26LS33AM
www.ti.com
SLLS115F – OCTOBER 1980 – REVISED SEPTEMBER 2016
7 Parameter Measurement Information
VCC
Test
Point
RL = 2 kΩ
S1
From Output
Under Test
CL
(see Note A)
5 kΩ
See Note B
S2
Figure 11. Test Circuit
2.5 V
Input
00
–2.5 V
tPLH
tPHL
VOH
Output
1.3 V
1.3 V
VOL
S1 and S2 Closed
Figure 12. Voltage Waveforms For tPLH, tPHL
≤5 ns
90%
Enable G
≤5 ns
3V
90%
1.3 V1.3 V
10%
10%
See Note C
90%
90%
10%
10%
tPZH
Output
S1 Open
S2 Closed
3V
1.3 V
1.3 V
Enable G
0
0
0.5 V
VOH
1.3 V
tPHZ
≈1.4 V
S1 Closed
S2 Closed
Figure 13. Voltage Waveforms For tPHZ, tPZH
Copyright © 1980–2016, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: AM26LS32AC AM26LS32AM AM26LS33AM
9
AM26LS32AC, AM26LS32AI, AM26LS32AM
AM26LS33AC, AM26LS33AM
SLLS115F – OCTOBER 1980 – REVISED SEPTEMBER 2016
www.ti.com
Parameter Measurement Information (continued)
≤5 ns
90%
Enable G
≤5 ns
3V
90%
1.3 V1.3 V
10%
10%
90%
90%
10%
10%
S1 Closed
S2 Closed
tPZL
Output
1.3 V
S1 Closed
S2 Open
A.
CL includes probe and jig capacitance.
B.
All diodes are 1N3064 or equivalent.
C.
Enable G is tested with G high, G is tested with G low.
3V
1.3 V
1.3 V
Enable G
0
0
≈1.4 V
tPLZ
VOL
0.5 V
Figure 14. Voltage Waveforms For tPLZ, tPZL
85 Ω
8.3 kΩ
100 kΩ
20 kΩ
960 Ω
960 Ω
100 kΩ
Copyright © 2016, Texas Instruments Incorporated
Figure 15. Schematics of Inputs and Outputs
10
Submit Documentation Feedback
Copyright © 1980–2016, Texas Instruments Incorporated
Product Folder Links: AM26LS32AC AM26LS32AM AM26LS33AM
AM26LS32AC, AM26LS32AI, AM26LS32AM
AM26LS33AC, AM26LS33AM
www.ti.com
SLLS115F – OCTOBER 1980 – REVISED SEPTEMBER 2016
8 Detailed Description
8.1 Overview
The AM26LS32 is a quadruple-differential line receiver that meets the necessary requirements for NSI TIA/EIA422-B, TIA/EIA-423-B, and ITU Recommendation V.10 and V.11. This device allows a low-power or low-voltage
MCU to interface with heavy machinery, subsystems, and other devices through long wires of up to 1000 m,
giving any design a reliable and easy-to-use connection. As any RS422 interface, the AM26LS32 works in a
differential voltage range, which enables very good signal integrity.
8.2 Functional Block Diagram
G
G
1A
1B
2A
2B
3A
3B
4A
4B
4
12
2
3
1
6
5
7
10
11
9
14
13
15
1Y
2Y
3Y
4Y
Copyright © 2016, Texas Instruments Incorporated
Figure 16. Logic Diagram (Positive Logic)
8.3 Feature Description
The device can be configured using the G and G logic inputs to select receiver output. The high voltage or logic
1 on the G pin allows the device to operate on an active-high, and having a low voltage or logic 0 on the G
enables active low operation. These are simple ways to configure the logic to match that of the receiving or
transmitting controller or microprocessor.
8.4 Device Functional Modes
The receivers implemented in these RS422 devices can be configured using the G and G logic pins to be
enabled or disabled. This allows users to ignore or filter out transmissions as desired.
Table 1. Function Table, Each Receiver
DIFFERENTIAL
A–B
VID ≥ VIT+
VIT– ≤ VID ≤ VIT+
VID ≤ VIT–
X
Open
(1)
ENABLES (1)
G
G
OUTPUT (1)
Y
H
X
H
X
L
H
H
X
?
X
L
?
H
X
L
X
L
L
L
H
Z
H
X
H
X
L
H
H = High level, L = Low level, X = Irrelevant, Z = High impedance (off), ? = Indeterminate
Copyright © 1980–2016, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: AM26LS32AC AM26LS32AM AM26LS33AM
11
AM26LS32AC, AM26LS32AI, AM26LS32AM
AM26LS33AC, AM26LS33AM
SLLS115F – OCTOBER 1980 – REVISED SEPTEMBER 2016
www.ti.com
9 Application and Implementation
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
9.1 Application Information
When using AM26LS32A as a receiver, the AM26LS31AC can allow multiple AM26LS32As to be used causing
an increase in the amount of outputs.
9.2 Typical Application
Figure 17 shows a configuration with no termination. Although reflections are present at the receiver inputs at a
data signaling rate of 200 kbps with no termination, the RS-422-compliant receiver reads only the input
differential voltage and produces a clean signal at the output.
Copyright © 2016, Texas Instruments Incorporated
†
RT equals the characteristic impedance of the line.
Figure 17. Application Diagram
9.2.1 Design Requirements
Resistor and capacitor (if used) termination values are shown for each laboratory experiment, but vary from
system to system. For example, the termination resistor, RT, must be within 20% of the characteristic impedance,
ZO, of the cable and can vary from about 80 Ω to 120 Ω.
9.2.2 Detailed Design Procedure
Add a VCC bypass capacitor (0.1 µF or more). Either enable (G pin) input can turn on the receivers, so connect
the desired enable to a compatible logic line output. The other enable input must be tied to the inactive state
supply rail. If the receivers must always be active, then connect both enables to the supply rail such that at least
one is set to an active-state rail. VCC must be 5 V within 10% and logic inputs must provide TTL-compatible
voltage levels A & B Inputs can lead to an external connector or can be left unconnected. The last receiver on a
cable requires termination, either on-board or use as an external resistor. Unused Y outputs can be left
unconnected.
12
Submit Documentation Feedback
Copyright © 1980–2016, Texas Instruments Incorporated
Product Folder Links: AM26LS32AC AM26LS32AM AM26LS33AM
AM26LS32AC, AM26LS32AI, AM26LS32AM
AM26LS33AC, AM26LS33AM
www.ti.com
SLLS115F – OCTOBER 1980 – REVISED SEPTEMBER 2016
Typical Application (continued)
High-Level Output Voltage, VOH (V)
9.2.3 Application Curve
IOH = –440 μA
Free-Air Temperature, TA (°C)
Figure 18. High-Level Output Voltage vs Free-Air Temperature
10 Power Supply Recommendations
Place 0.1-µF bypass capacitors close to the power-supply pins to reduce errors coupling in from noisy or highimpedance power supplies.
11 Layout
11.1 Layout Guidelines
For best operational performance of the device, use good PCB layout practices including:
• Noise can propagate into analog circuitry through the power pins of the circuit as a whole, as well as the
operational amplifier. Bypass capacitors are used to reduce the coupled noise by providing low impedance
power sources local to the analog circuitry.
• Connect low-ESR, 0.1-µF ceramic bypass capacitors between each supply pin and ground, placed as close
to the device as possible. A single bypass capacitor from V+ to ground is applicable for single supply
applications.
• Separate grounding for analog and digital portions of circuitry is one of the simplest and most-effective
methods of noise suppression. One or more layers on multilayer PCBs are usually devoted to ground planes.
A ground plane helps distribute heat and reduces EMI noise pickup. Make sure to physically separate digital
and analog grounds, paying attention to the flow of the ground current.
• To reduce parasitic coupling, run the input traces as far away from the supply or output traces as possible. If
it is not possible to keep them separate, it is much better to cross the sensitive trace perpendicular as
opposed to in parallel with the noisy trace.
• Place the external components as close to the device as possible. Keeping RF and RG close to the inverting
input minimizes parasitic capacitance.
• Keep the length of input traces as short as possible. Always remember that the input traces are the most
sensitive part of the circuit.
• Consider a driven, low-impedance guard ring around the critical traces. A guard ring can significantly reduce
leakage currents from nearby traces that are at different potentials.
Copyright © 1980–2016, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: AM26LS32AC AM26LS32AM AM26LS33AM
13
AM26LS32AC, AM26LS32AI, AM26LS32AM
AM26LS33AC, AM26LS33AM
SLLS115F – OCTOBER 1980 – REVISED SEPTEMBER 2016
www.ti.com
11.2 Layout Example
VDD
Termination Resistor
Reduce logic signal trace
when possible
1
1B
VCC 16
2
1A
4B 15
3
1Y
4A 14
4
G
4Y 13
5
2Y
G 12
6
2A
3Y 11
7
2B
3A 10
8
3B
0.1 F
9
Figure 19. Layout with PCB Recommendations
14
Submit Documentation Feedback
Copyright © 1980–2016, Texas Instruments Incorporated
Product Folder Links: AM26LS32AC AM26LS32AM AM26LS33AM
AM26LS32AC, AM26LS32AI, AM26LS32AM
AM26LS33AC, AM26LS33AM
www.ti.com
SLLS115F – OCTOBER 1980 – REVISED SEPTEMBER 2016
12 Device and Documentation Support
12.1 Related Links
The table below lists quick access links. Categories include technical documents, support and community
resources, tools and software, and quick access to sample or buy.
Table 2. Related Links
PARTS
PRODUCT FOLDER
SAMPLE & BUY
TECHNICAL
DOCUMENTS
TOOLS &
SOFTWARE
SUPPORT &
COMMUNITY
AM26LS32AC
Click here
Click here
Click here
Click here
Click here
AM26LS32AI
Click here
Click here
Click here
Click here
Click here
AM26LS32AM
Click here
Click here
Click here
Click here
Click here
AM26LS33AC
Click here
Click here
Click here
Click here
Click here
AM26LS33AM
Click here
Click here
Click here
Click here
Click here
12.2 Receiving Notification of Documentation Updates
To receive notification of documentation updates, navigate to the device product folder on ti.com. In the upper
right corner, click on Alert me to register and receive a weekly digest of any product information that has
changed. For change details, review the revision history included in any revised document.
12.3 Community Resources
The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective
contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of
Use.
TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration
among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help
solve problems with fellow engineers.
Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and
contact information for technical support.
12.4 Trademarks
E2E is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
12.5 Electrostatic Discharge Caution
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
12.6 Glossary
SLYZ022 — TI Glossary.
This glossary lists and explains terms, acronyms, and definitions.
13 Mechanical, Packaging, and Orderable Information
The following pages include mechanical, packaging, and orderable information. This information is the most
current data available for the designated devices. This data is subject to change without notice and revision of
this document. For browser-based versions of this data sheet, refer to the left-hand navigation.
Copyright © 1980–2016, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: AM26LS32AC AM26LS32AM AM26LS33AM
15
PACKAGE OPTION ADDENDUM
www.ti.com
14-Oct-2022
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
Samples
(4/5)
(6)
5962-7802003M2A
ACTIVE
LCCC
FK
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
59627802003M2A
AM26LS
32AMFKB
5962-7802003MEA
ACTIVE
CDIP
J
16
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-7802003ME
A
AM26LS32AMJB
5962-7802003MFA
ACTIVE
CFP
W
16
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-7802003MF
A
AM26LS32AMWB
5962-7802004M2A
ACTIVE
LCCC
FK
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
59627802004M2A
AM26LS
33AMFKB
5962-7802004MEA
ACTIVE
CDIP
J
16
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-7802004ME
A
AM26LS33AMJB
5962-7802004MFA
ACTIVE
CFP
W
16
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-7802004MF
A
AM26LS33AMWB
AM26LS32ACD
ACTIVE
SOIC
D
16
40
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
26LS32AC
Samples
AM26LS32ACDE4
ACTIVE
SOIC
D
16
40
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
26LS32AC
Samples
AM26LS32ACDG4
ACTIVE
SOIC
D
16
40
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
26LS32AC
Samples
AM26LS32ACDR
ACTIVE
SOIC
D
16
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
26LS32AC
Samples
AM26LS32ACDRE4
ACTIVE
SOIC
D
16
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
26LS32AC
Samples
AM26LS32ACDRG4
ACTIVE
SOIC
D
16
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
26LS32AC
Samples
AM26LS32ACN
ACTIVE
PDIP
N
16
25
RoHS & Green
NIPDAU
N / A for Pkg Type
0 to 70
AM26LS32ACN
Samples
AM26LS32ACNSR
ACTIVE
SO
NS
16
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
26LS32A
Samples
AM26LS32ACNSRG4
ACTIVE
SO
NS
16
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
26LS32A
Samples
Addendum-Page 1
Samples
Samples
Samples
Samples
Samples
Samples
PACKAGE OPTION ADDENDUM
www.ti.com
Orderable Device
14-Oct-2022
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
Samples
(4/5)
(6)
AM26LS32ACPW
ACTIVE
TSSOP
PW
16
90
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
SA32A
Samples
AM26LS32ACPWR
ACTIVE
TSSOP
PW
16
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
SA32A
Samples
AM26LS32ACPWRE4
ACTIVE
TSSOP
PW
16
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
SA32A
Samples
AM26LS32AID
ACTIVE
SOIC
D
16
40
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
26LS32AI
Samples
AM26LS32AIDE4
ACTIVE
SOIC
D
16
40
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
26LS32AI
Samples
AM26LS32AIDG4
ACTIVE
SOIC
D
16
40
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
26LS32AI
Samples
AM26LS32AIDR
ACTIVE
SOIC
D
16
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
26LS32AI
Samples
AM26LS32AIDRG4
ACTIVE
SOIC
D
16
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
26LS32AI
Samples
AM26LS32AIN
ACTIVE
PDIP
N
16
25
RoHS & Green
NIPDAU
N / A for Pkg Type
-40 to 85
AM26LS32AIN
Samples
AM26LS32AMFKB
ACTIVE
LCCC
FK
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
59627802003M2A
AM26LS
32AMFKB
AM26LS32AMJ
ACTIVE
CDIP
J
16
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
AM26LS32AMJ
AM26LS32AMJB
ACTIVE
CDIP
J
16
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-7802003ME
A
AM26LS32AMJB
AM26LS32AMWB
ACTIVE
CFP
W
16
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-7802003MF
A
AM26LS32AMWB
AM26LS33ACD
ACTIVE
SOIC
D
16
40
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
26LS33AC
Samples
AM26LS33ACDG4
ACTIVE
SOIC
D
16
40
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
26LS33AC
Samples
AM26LS33ACDR
ACTIVE
SOIC
D
16
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
26LS33AC
Samples
AM26LS33ACN
ACTIVE
PDIP
N
16
25
RoHS & Green
NIPDAU
N / A for Pkg Type
0 to 70
AM26LS33ACN
Samples
AM26LS33AMFKB
ACTIVE
LCCC
FK
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
59627802004M2A
Samples
Addendum-Page 2
Samples
Samples
Samples
Samples
PACKAGE OPTION ADDENDUM
www.ti.com
Orderable Device
14-Oct-2022
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
Samples
(4/5)
(6)
AM26LS
33AMFKB
AM26LS33AMJ
ACTIVE
CDIP
J
16
25
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
AM26LS33AMJ
AM26LS33AMJB
ACTIVE
CDIP
J
16
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-7802004ME
A
AM26LS33AMJB
AM26LS33AMWB
ACTIVE
CFP
W
16
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-7802004MF
A
AM26LS33AMWB
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of