AD5122A 查看數據表（PDF） - Analog Devices

零件编号

产品描述 (功能)

生产厂家

AD5122A

Dual Channel, 128-/256-Position, I2C, Nonvolatile Digital Potentiometer

Analog Devices 

AD5122A/AD5142A

Parameter

RESISTOR TERMINALS

Maximum Continuous Current

Terminal Voltage Range5

Capacitance A, Capacitance B3

Capacitance W3

Common-Mode Leakage Current3

DIGITAL INPUTS

Input Logic3

High

Low

Input Hysteresis3

Input Current3

Input Capacitance3

DIGITAL OUTPUTS

Output High Voltage3

Output Low Voltage3

Three-State Leakage Current

Three-State Output Capacitance

POWER SUPPLIES

Single-Supply Power Range

Dual-Supply Power Range

Logic Supply Range

Positive Supply Current

Negative Supply Current

EEPROM Store Current3, 6

EEPROM Read Current3, 7

Logic Supply Current

Power Dissipation8

Power Supply Rejection Ratio

Symbol

IA, IB, and IW

CA, CB

CW

VINH

VINL

VHYST

IIN

CIN

VOH

VOL

IDD

ISS

IDD_EEPROM_STORE

IDD_EEPROM_READ

ILOGIC

PDISS

PSRR

Test Conditions/Comments Min

Data Sheet

Typ1 Max

Unit

RAB = 10 kΩ

−6

+6

mA

RAB = 100 kΩ

−1.5

+1.5

mA

VSS

VDD

V

f = 1 MHz, measured to GND,

code = half scale

RAB = 10 kΩ

25

pF

RAB = 100 kΩ

12

pF

f = 1 MHz, measured to GND,

code = half scale

RAB = 10 kΩ

12

pF

RAB = 100 kΩ

5

pF

VA = VW = VB

−500

±15 +500

nA

VLOGIC = 1.8 V to 2.3 V

VLOGIC = 2.3 V to 5.5 V

RPULL-UP = 2.2 kΩ to VLOGIC

ISINK = 3 mA

ISINK = 6 mA, VLOGIC > 2.3 V

VSS = GND

Single supply, VSS = GND

Dual supply, VSS < GND

VIH = VLOGIC or VIL = GND

VDD = 5.5 V

VDD = 2.3 V

VIH = VLOGIC or VIL = GND

VIH = VLOGIC or VIL = GND

VIH = VLOGIC or VIL = GND

VIH = VLOGIC or VIL = GND

VIH = VLOGIC or VIL = GND

∆VDD/∆VSS = VDD ± 10%,

code = full scale

0.8 × VLOGIC

0.7 × VLOGIC

0.1 × VLOGIC

5

V

V

0.2 × VLOGIC V

V

±1

µA

pF

VLOGIC

V

0.4

V

0.6

V

−1

+1

µA

2

pF

2.3

±2.25

1.8

2.25

5.5

V

±2.75

V

VDD

V

VDD

V

0.7 5.5

µA

400

nA

−5.5

−0.7

µA

2

mA

320

µA

1

120

nA

3.5

µW

−66 −60

dB

Rev. A | Page 4 of 32

Share Link: