N57M5127 [ONSEMI]
32âtap Digital Potentiometer (POT) with Wiper Storage;
| 型号： | N57M5127 |
| 厂家： | 
ONSEMI |
| 描述： | 32âtap Digital Potentiometer (POT) with Wiper Storage |
| 文件： | 总9页 (文件大小：89K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
N57M5127
Product Preview
32‐tap Digital
Potentiometer (POT) with
Wiper Storage
www.onsemi.com
Description
The N57M5127 is a single digital POTs designed as an electronic
replacement for mechanical potentiometers and trim pots. Ideal for
automated adjustments on high volume production lines, it is also well
suited for applications where equipment requiring periodic adjustment
is either difficult to access or located in a hazardous or remote
environment.
1
MSOP−8
Z SUFFIX
CASE 846AD
The N57M5127 contains a 32-tap series resistor array connected
between two terminals R and R . An up/down counter and decoder
H
L
that are controlled by three input pins, determines which tap is
connected to the wiper. The wiper setting, stored in nonvolatile
memory, is not lost when the device is powered down and is
automatically reinstated when power is returned. The wiper can be
adjusted to test new system values without effecting the stored setting.
Wiper-control of the N57M5127 is accomplished with three input
control pins, CS, U/D, and INC. The INC input increments the wiper
in the direction which is determined by the logic state of the U/D input.
The CS input is used to select the device and also store the wiper
position prior to power down.
PIN CONFIGURATION
N57M5127
MSOP (Z)
1
INC
U/D
V
CC
CS
R
R
L
H
GND
NC
(Top View)
The device is used as a two-terminal variable resistors. Digital POTs
bring variability and programmability to a wide variety of applications
including control, parameter adjustments, and signal processing.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
Features
• 32-position Linear Taper Potentiometer
• Non-volatile EEPROM Wiper Storage
• Low Standby Current
• Single Supply Operation: 2.7 V – 5.5 V
• Increment Up/Down Serial Interface
• Resistance Values: 10 kW, 50 kW and 100 kW
• 8−Lead MSOP Package
• This Device is Pb-Free, Halogen Free/BFR Free and are RoHS
Compliant
Applications
• Automated Product Calibration
• Remote Control Adjustments
• Offset, Gain and Zero Control
• Tamper-proof Calibrations
• Contrast, Brightness and Volume Controls
• Motor Controls and Feedback Systems
• Programmable Analog Functions
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
© Semiconductor Components Industries, LLC, 2016
1
Publication Order Number:
August, 2016 − Rev. P0
N57M5127/D
N57M5127
N57M5127
V
CC
R
P
R
R
H
(U/D)
Control
and
(INC)
(CS)
Memory
L
POR
GND
Figure 1. Functional Diagram
Table 1. PIN DESCRIPTIONS
Name
Function
MSOP
INC
U/D
Increment Control
Up/Down Control
1
2
3
4
5
6
7
8
R
Potentiometer High Terminal
Ground
H
GND
NC
No Connect
R
Potentiometer Low Terminal
Chip Select
L
CS
V
CC
Supply Voltage
DEVICE DESCRIPTION
INC: Increment Control Input
R : Low End Potentiometer Terminal
L
The INC input moves the wiper in the up or down
direction determined by the condition of the U/D input.
R is the low end terminal of the potentiometer. It is not
required that this terminal be connected to a potential less
L
than the R terminal. Voltage applied to the R terminal
H
L
U/D: Up/Down Control Input
cannot exceed the supply voltage, V or go below ground,
CC
The U/D input controls the direction of the wiper
movement. When in a high state and CS is low, any
high-to-low transition on INC will cause the wiper to move
GND. R and R are electrically interchangeable.
L
H
CS: Chip Select
one increment toward the R terminal. When in a low state
and CS is low, any high-to-low transition on INC will cause
The chip select input is used to activate the control input
of the device and is active low. When in a high state, activity
on the INC and U/D inputs will not affect or change the
position of the wiper. There is an internal pull-up resistor on
the CS input pin.
H
the wiper to move one increment towards the R terminal.
L
R : High End Potentiometer Terminal
H
R is the high end terminal of the potentiometer. It is not
H
required that this terminal be connected to a potential greater
V
CC
: Supply Input for the device.
than the R terminal. Voltage applied to the R terminal
L
H
cannot exceed the supply voltage, V or go below ground,
CC
GND.
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2
N57M5127
DEVICE OPERATION
The N57M5127 operates like a digitally controlled
variable resistor with R and R equivalent to the high and
the state of the U/D input and five-bit counter). The wiper,
when at either end terminal, acts like its mechanical
equivalent and does not move beyond the last position. The
value of the counter is stored in nonvolatile memory
whenever CS transitions HIGH while the INC input is also
HIGH. When the device is powered-down, the last stored
wiper counter position is maintained in the nonvolatile
memory. When power is restored, the contents of the memory
are recalled and the counter is set to the value stored.
With INC set low, the device may be de-selected and
powered down without storing the current wiper position in
nonvolatile memory. This allows the system to always
power up to a preset value stored in nonvolatile memory.
H
L
low terminals. There are 32 available tap positions including
the resistor end points, R and R . There are 31 resistor
H
L
elements connected in series between the R and R
H
L
terminals.
Operation is controlled by three inputs, INC, U/D and CS.
These inputs control a five-bit up/down counter whose
output is decoded to select the wiper position. The selected
wiper position can be stored in nonvolatile memory using
the INC and CS inputs.
With CS set LOW, the device is selected and will respond
to the U/D and INC inputs. HIGH to LOW transitions on
INC will increment or decrement the wiper (depending on
Table 2. OPERATION MODES
INC
High to Low
High to Low
High
CS
Low
U/D
High
Low
X
Operation
Wiper toward H
Low
Wiper toward L/GND
Store Wiper Position
No Store, Return to Standby
Standby
Low to High
Low to High
High
Low
X
X
X
R
H
C
H
C
L
R /GND
L
Figure 2. Variable Resistor Equivalent Circuit
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3
N57M5127
Table 3. ABSOLUTE MAXIMUM RATINGS
Parameters
Ratings
Units
Supply Voltage
V
V
CC
to GND
−0.5 to +7
Inputs
V
CS to GND
INC to GND
U/D to GND
H to GND
−0.5 to V +0.5
CC
−0.5 to V +0.5
CC
−0.5 to V +0.5
CC
−0.5 to V +0.5
CC
L to GND
W to GND
−0.5 to V +0.5
CC
−0.5 to V +0.5
CC
Operating Ambient Temperature
Commercial (‘C’ or Blank suffix)
Industrial (‘I’ suffix)
°C
0 to 70
−40 to +85
Junction Temperature
Storage Temperature
Lead Soldering (10 s max)
+150
−65 to 150
+300
°C
°C
°C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
Table 4. RELIABILITY CHARACTERISTICS
Symbol
(Note 1)
Parameter
ESD Susceptibility
Latch-up
Test Method
Min
2000
Typ
Max
Units
V
V
MIL−STD−883, Test Method 3015
JEDEC Standard 17
ZAP
I
(Notes 1, 2)
100
mA
LTH
T
Data Retention
Endurance
MIL−STD−883, Test Method 1008
MIL−STD−883, Test Method 1003
100
Years
Stores
DR
N
1,000,000
END
1. This parameter is tested initially and after a design or process change that affects the parameter.
2. Latch-up protection is provided for stresses up to 100 mA on address and data pins from −1 V to V + 1 V
CC
3. These parameters are periodically sampled and are not 100% tested.
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4
N57M5127
Table 5. DC ELECTRICAL CHARACTERISTICS (VCC = +2.7 V to +5.5 V unless otherwise specified)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
POWER SUPPLY
V
I
Operating Voltage Range
Supply Current (Increment)
2.7
5.5
260
150
600
400
1
V
CC
V
V
= 5.5 V, f = 1 MHz, I = 0
mA
mA
mA
mA
mA
CC1
CC2
CC
W
= 3.3 V, f = 1 MHz, I = 0
CC
W
I
Supply Current (Write)
Programming, V = 5.5 V
300
150
0.35
CC
Programming, V = 3.3 V
CC
I
Supply Current (Standby)
CS = V − 0.3 V
CC
SB1
(Note 4)
LOGIC INPUTS
Input Leakage Current
U/D, INC = V or GND
CC
I
IH
U/D, INC = V
1
1
mA
mA
mA
mA
V
CC
CS = V − 0.3 V
CC
I
IL
Input Leakage Current
U/D, INC = 0
CS = 0
−1
−120
V
High Level Input Voltage
Low Level Input Voltage
V
x 0.7
V
+ 0.3
IH
CC
CC
V
−0.3
V
x 0.2
V
IL
CC
Table 6. POTENTIOMETER CHARACTERISTICS
Symbol
Parameter
Conditions
Min
Typ
10
Max
Units
R
Potentiometer Resistance
−10 Device
−50 Device
−00 Device
kW
POT
50
100
R
Pot Resistance Tolerance
20
%
V
TOL
V
Voltage on R pin
0
0
V
RH
H
CC
CC
V
Voltage on R pin
V
V
RL
L
RES
INL
Resolution
3.2
%
Integral Linearity Error
Differential Linearity Error
Wiper Resistance
0.5
0.25
100
200
300
20
LSB
LSB
W
DNL
R
Wi
V
V
= 5 V
70
150
30
CC
= 2.7 V
W
CC
TC
TC
(Note 6)
TC of Pot Resistance
Ratiometric TC
ppm/°C
ppm/°C
nV/√Hz
pF
RPOT
(Note 6)
3
RATIO
V
(Note 6)
Noise
100 kHz / 1 kHz
8/24
8/8/25
1.7
N
C /C /C (Note 6)
Potentiometer Capacitances
Frequency Response
H
L
W
Fc (Note 6)
Passive Attenuator, 10 kW
MHz
4. Latch-up protection is provided for stresses up to 100 mA on address and data pins from −1 V to V + 1 V
CC
5. I = source or sink
W
6. These parameters are periodically sampled and are not 100% tested.
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
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5
N57M5127
Table 7. AC TEST CONDITIONS
V
CC
Range
2.7 V ≤ V ≤ 5.5 V
CC
Input Pulse Levels
0.2 x V to 0.7 x V
CC
CC
Input Rise and Fall Times
Input Reference Levels
10 ns
0.5 x V
CC
Table 8. AC OPERATING CHARACTERISTICS (V = +2.7 V to +5.5 V, V = V , V = 0 V, unless otherwise specified)
CC
H
CC
L
Symbol
Parameter
CS to INC Setup
Min
100
50
Typ (Note 7)
Max
Units
ns
t
CI
t
DI
t
ID
U/D to INC Setup
U/D to INC Hold
ns
100
250
250
1
ns
t
INC LOW Period
ns
IL
IH
IC
t
t
INC HIGH Period
INC Inactive to CS Inactive
ns
ms
t
t
CS Deselect Time (NO STORE)
CS Deselect Time (STORE)
100
10
ns
CPH
CPH
ms
ms
t
IR
INC to R Change
1
2
5
H
t
INC Cycle Time
1
ms
CYC
t , t (Note 8)
INC Input Rise and Fall Time
Power-up to Wiper Stable
Store Cycle
500
1
ms
R
F
t
(Note 8)
ms
ms
PU
t
5
WR
CS
(store)
t
CYC
t
IC
t
CPH
t
CI
t
IL
t
IH
90%
90%
INC
U/D
10%
t
DI
t
ID
t
F
t
R
MI (Note 9)
t
IR
R
H
Figure 3. A.C. Timing
7. Typical values are for T = 25°C and nominal supply voltage.
A
8. This parameter is periodically sampled and not 100% tested.
9. MI in the A.C. Timing diagram refers to the minimum incremental change in the W output due to a change in the wiper position.
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6
N57M5127
APPLICATION INFORMATION
(a) resistive divider
(b) variable resistance
(c) two−port
Figure 4. Potentiometer Configurations
Applications
A
R
1
3
R
R
V
(−)
4
+5 V
3
+
–
1
1
+5 V
R
R
1
8
2
2
1
7
R
R
6
A
B
+5 V
4
2
+5 V
8
9
A
pR
}
3
–
POT
2
1
7
4
8
R
V
O
1
4
8
+
(1−p)R
}
POT
R
11
2
10
3
5
3
7
N57M5127
2
4
555
A
2
R
R
6
4
1
3
–
+
N57M5127
6
+2.5 V
7
V
2
2
1
5
(+)
C
A = A = A = / LM 6064
R = R = R = 5 kW
1
2
3
4
0.01 mF
0.01 mF
0.003 mF
2
3
4
R
= 10 kW
POT
Figure 5. Programmable Instrumentation Amplifier
Figure 6. Programmable Sq. Wave Oscillator (555)
+5 V
100 kW
8
2
N57M5127
1
7
V
OUT
V (REG)
O
0.1 mF
4
R
1
2952
V
(UNREG)
IN
6.8 mF
11 kW
(1−p)R
3
pR
1.23 V
SHUTDOWN
330
+5 V
1 M
+5 V
SD
GND
FB
6
1 mF
330
R
2
+5 V
820
2
3
7
7
–
–
+
8
6
6
A2
V
O
2
3
2
1
7
3
+
A1
4
4
I
S
R
3
10 k
6
N57M5127
LT1097
+2.5 V
4
Figure 7. Programmable Voltage Regulator
Figure 8. Programmable I to V Convertor
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7
N57M5127
PACKAGE DIMENSIONS
MSOP 8, 3x3
CASE 846AD
ISSUE O
SYMBOL
MIN
NOM
MAX
A
A1
A2
b
1.10
0.15
0.95
0.38
0.23
3.10
5.00
3.10
0.05
0.75
0.22
0.13
2.90
4.80
2.90
0.10
0.85
c
D
3.00
4.90
E
E1
E
E1
e
3.00
0.65 BSC
0.60
L
0.40
0.80
L1
L2
θ
0.95 REF
0.25 BSC
0º
6º
TOP VIEW
D
A2
A
DETAIL A
A1
e
b
c
SIDE VIEW
END VIEW
q
L2
Notes:
L
(1) All dimensions are in millimeters. Angles in degrees.
(2) Complies with JEDEC MO-187.
L1
DETAIL A
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8
N57M5127
Table 9. ORDERING INFORMATION (Notes 10, 11)
†
Device
Orderable Part Number
N57M5127ZD10TG
Resistor [kW]
Top Marking
ABNA
Package/Pins
MSOP−8
Shipping
N57M5127
10
50
3000 / Tape & Reel
3000 / Tape & Reel
N57M5127ZD50TG (Note 13)
ABNB
MSOP−8
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
10.All packages are RoHS-compliant (Lead-free, Halogen-free).
11. The standard lead finish is NiPdAu.
12.For additional package and temperature options, please contact your nearest ON Semiconductor Sales office.
13.Contact factory for availability.
14.For detailed information and a breakdown of device nomenclature and numbering systems, please see the ON Semiconductor Device
Nomenclature document, TND310/D, available at www.onsemi.com.
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coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.
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N57M5127/D
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