Analog Devices Inc.（ADI） AD5123BCPZ100-RL7

View All Display Drivers by Analog Devices Inc.（ADI）

Part Number:
AD5123BCPZ100-RL7
Manufacturer:
Analog Devices Inc.（ADI）
Category:
Display Drivers
RoHs:
RoHS Compliant
Datasheet:
AD5123BCPZ100-RL7_Datesheet
Description:
IC DGTL POT 100KOHM 16LFCSP
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Specifications

Type

Paramete

Type

Paramete

Features

Selectable Address

Temperature Coefficient (Typ)

35ppm/°C

Mounting Type

Surface Mount

Configuration

Potentiometer

Number of Taps

128

Taper

Linear

Number of Circuits

Grade

Qualification

Supplier Device Package

16-LFCSP (3x3)

Voltage - Supply

2.3V ~ 5.5V, ±2.25V ~ 2.75V

Resistance (Ohms)

100k

Interface

I2C

Memory Type

Non-Volatile

Resistance - Wiper (Ohms) (Typ)

130

Package / Case

16-WFQFN Exposed Pad, CSP

Operating Temperature

-40°C ~ 125°C

Tolerance

±8%

Overview

AD5123BCPZ100‑RL7 Digital Potentiometer Datasheet Summary

1. Basic Device Information

Part Number: AD5123BCPZ100‑RL7
Product Family: AD5123/AD5143
Device Type: Quad‑channel, 128‑position, nonvolatile digital potentiometer
Interface: I²C‑compatible (2‑wire)
Nominal Resistance: 100 kΩ
Resolution: 7 bits (128 wiper positions)
Package: 16‑lead LFCSP, 3 mm × 3 mm, with exposed paddle (EPAD)
RoHS: Compliant (Z suffix)
Marking Code: DH0
Status: Active
Operating Temperature: −40°C to +125°C (industrial)
Packaging: Tape‑and‑reel, 1500 units per reel
Document Revision: Rev. E

2. Key Features

Quad independent channels
Nonvolatile EEPROM stores wiper settings
Resistance tolerance: ±8% maximum
Wiper current: ±6 mA (100 kΩ version: ±1.5 mA continuous)
Low temperature coefficient: 35 ppm/°C
Bandwidth: 0.43 MHz (−3 dB, 100 kΩ)
Fast start‑up: <75 µs
Linear gain‑setting mode
Single‑ and dual‑supply operation
Low wiper resistance at ends: 60 Ω typ, 230 Ω max
Software shutdown, reset, increment/decrement commands
High linearity and low THD: −90 dB typ (100 kΩ, 1 kHz)

3. Power Supply Specifications

Parameter	Min	Typ	Max	Unit
Single supply (VDD, VSS = 0 V)	2.3	—	5.5	V
Dual supply (VDD/VSS)	±2.25	—	±2.75	V
Positive supply current (IDD)	—	—	5.5	µA
Negative supply current (ISS)	—	—	−60	µA
EEPROM store current	—	2	320	µA
EEPROM read current	—	3.5	—	µA
Power dissipation	—	0.7	400	µW

4. Electrical Characteristics (TA = 25°C, VDD = 5 V, VSS = 0 V)

DC Characteristics – Rheostat Mode

Parameter	Min	Typ	Max	Unit
Resolution	7	—	—	Bits
Resistor integral nonlinearity (R‑INL)	−0.5	±0.1	+0.5	LSB
Resistor differential nonlinearity (R‑DNL)	−0.5	±0.1	+0.5	LSB
Nominal resistance match (RAB1/RAB2)	−1	±0.2	+1	%
Wiper resistance (RW), zero/full scale	—	130	400	Ω
Bottom/top scale resistance (RBS/RTS)	—	60	230	Ω

DC Characteristics – Potentiometer Divider Mode

Parameter	Min	Typ	Max	Unit
Integral nonlinearity (INL)	−0.25	±0.1	+0.25	LSB
Differential nonlinearity (DNL)	−0.5	±0.1	+0.5	LSB
Voltage divider tempco	—	0.25	—	ppm/°C
Full‑scale error	−0.25	±0.1	+0.25	LSB
Zero‑scale error	−1.5	±0.1	+1.5	LSB

Dynamic Characteristics

Parameter	Typ	Max	Unit
Bandwidth (100 kΩ)	0.43	—	MHz
THD (100 kΩ, 1 kHz)	−90	—	dB
Voltage noise density (100 kΩ, 10 kHz)	20	—	nV/√Hz
Wiper settling time (100 kΩ)	12	—	µs
Analog crosstalk	−90	—	dB

5. Absolute Maximum Ratings

Parameter	Rating
VDD to GND	−0.3 V to +7.0 V
VSS to GND	+0.3 V to −7.0 V
VDD − VSS	7 V
Analog terminals (A, W, B)	VSS − 0.3 V to VDD + 0.3 V
Continuous wiper current (100 kΩ)	±1.5 mA
Pulsed wiper current (100 kΩ)	±1.5 mA/√d
Digital inputs	−0.3 V to VDD + 0.3 V
Operating temperature	−40°C to +125°C
Storage temperature	−65°C to +150°C
Reflow peak temperature	260°C

6. I²C Interface Specifications

Supported modes: Standard (100 kHz), Fast (400 kHz)
7‑bit device addresses:
Input logic: VIH = 0.7×VDD, VIL = 0.1×VDD
Input hysteresis: 5 mV typ
Bus capacitance limit: 400 pF
EEPROM program time: 15 ms typ, 50 ms max
EEPROM readback time: 7 µs typ, 30 µs max
Power‑up restore time: <75 µs

7. Pin Configuration (16‑Lead LFCSP)

Pin No.	Name	Description
1	A1	Terminal A, RDAC1
2	W1	Wiper, RDAC1
3	B1	Terminal B, RDAC1
4	W3	Wiper, RDAC3
5	B3	Terminal B, RDAC3
6	VSS	Negative supply
7	A2	Terminal A, RDAC2
8	W2	Wiper, RDAC2
9	B2	Terminal B, RDAC2
10	W4	Wiper, RDAC4
11	B4	Terminal B, RDAC4
12	VDD	Positive supply
13	SCL	I²C serial clock
14	SDA	I²C serial data I/O
15	ADDR	I²C address select
16	GND	Logic ground
EPAD	Exposed paddle; connect to VSS

8. Functional Description

Quad RDAC Channels: Four independent 128‑position potentiometers
Nonvolatile Memory: On‑board EEPROM saves wiper positions through power cycles
Dual Modes:
Control Features:
Protection: ESD diodes; register write protect via control bits

9. Reliability Specifications

Endurance: 100k cycles (JEDEC standard)
Data retention: 50 years at 125°C (1k cycles); 5 years at 100k cycles
ESD ratings: HBM and CDN protected (standard for analog ICs)
Thermal resistance (θJB): 33.4°C/W (LFCSP)

10. Typical Applications

Portable electronics level adjustment
LCD brightness/contrast control
Programmable filters, delays, time constants
Programmable voltage references and power supplies
Calibration and trim circuits
Industrial and automotive control

11. Layout & Power Guidelines

Decouple VDD/VSS with 0.1 µF ceramic + 1–10 µF low‑ESR capacitors
Short, direct traces for analog inputs/outputs
Solid ground plane; connect EPAD to VSS
Power‑up sequence: VSS → VDD → digital → analog signals
Keep SCL/SDA traces short; minimize noise coupling

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