Datasheet > AD5247BKS100-RL7

AD5247BKS100-RL7

更新时间： 2022-11-24 22:01:33

品牌	Logo	应用领域
亚德诺 - ADI		数字电位计
页数	文件大小	规格书
20页	1011K
描述
128-Position I2C Compatible Digital Potentiometer

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AD5247BKS100-RL7 数据手册

AD5247

ELECTRICAL CHARACTERISTICS—5 kΩ VERSION

Table 1. V_DD= 5 V 1ꢀ0 or 3 V 1ꢀ0; V_A= +V_DD; –4ꢀ°C < T_A< +125°C; unless otherwise noted

Parameter

Symbol Conditions

Min Typ¹

Max

Unit

DC CHARACTERISTICS—RHEOSTAT MODE

Resistor Differential Nonlinearity²

Resistor Integral Nonlinearity²

Nominal Resistor Tolerance³

Resistance Temperature Coefficient

R_WB

R-DNL

R-INL

∆R_AB

∆R_AB/∆T

R_WB

R_WB, V_A= No Connect

–1.5

–4

–30

0.1

0.ꢀ5

+1.5

+30

LSB

ppm/°C

Ω

V_A= V_DD, Wiper = No Connect

Code = 0x00

ꢀ5

300

DC CHARACTERISTICS—POTENTIOMETER DIVIDER MODE

Differential Nonlinearity⁴

Integral Nonlinearity⁴

Voltage Divider Temperature Coefficient

Full-Scale Error

DNL

INL

∆V_W/∆T

V_WFSE

V_WZSE

–1

0.1

0.2

–2

LSB

ppm/°C

LSB

Code = 0x40

Code = 0xꢀF

Code = 0x00

–3

Zero-Scale Error

RESISTOR TERMINALS

Voltage Range⁵

V_{B, W}

C_A

GND

V_DD

Capacitance⁶A

f = 1 MHz, Measured to GND,

Code = 0x40

f = 1 MHz, Measured to GND,

Code = 0x40

Capacitance⁶W

C_W

I_CM

Common-Mode Leakage

DIGITAL INPUTS AND OUTPUTS

Input Logic High

Input Logic Low

Input Logic High

Input Logic Low

Input Current

Input Capacitance⁶

V_A= V_DD/2

V_IH

V_IL

V_IH

V_IL

I_IL

V_DD= 5 V

V_DD= 3 V

2.4

2.1

µA

0.8

0.6

V_IN= 0 V or 5 V

C_IL

POWER SUPPLIES

Power Supply Range

Supply Current

Power Dissipation^ꢀ

V_{DD RANGE}

I_DD

P_DISS

2.ꢀ

5.5

µA

µW

V_IH= 5 V or V_IL= 0 V

V_IH= 5 V or V_IL= 0 V, V_DD= 5 V

Power Supply Sensitivity

PSSR

V_DD= +5 V 10%,

Code = Midscale

0.003

0.05 %/%

DYNAMIC CHARACTERISTICS^{6, 8}

Bandwidth –3 dB

Total Harmonic Distortion

BW_5K

THD_W

R_AB= 5 kΩ, Code = 0x40

V_A= 1 V rms, V_B= 0 V,

f = 1 kHz

V_A= 5 V, 1 LSB Error Band

R_WB= 2.5 kΩ, R_S= 0 Ω

1.2

MHz

0.05

µs

nV/√Hz

V_WSettling Time

Resistor Noise Voltage Density

t_S

e_{N_WB}

¹Typical specifications represent average readings at 25°C and V_DD= 5 V.

²Resistor position nonlinearity error R-INL is the deviation from an ideal value measured between the maximum resistance and the minimum resistance wiper

positions. R-DNL measures the relative step change from ideal between successive tap positions. Parts are guaranteed monotonic.

³V_A= V_DD, Wiper (V_W) = no connect.

⁴INL and DNL are measured at V_Wwith the RDAC configured as a potentiometer divider similar to a voltage output D/A converter. V_A= V_DDand V_B= 0 V.

DNL specification limits of 1 LSB maximum are guaranteed monotonic operating conditions.

⁵Resistor terminals A and W have no limitations on polarity with respect to each other.

⁶Guaranteed by design and not subject to production test.

^ꢀP_DISSis calculated from (I_DD× V_DD). CMOS logic level inputs result in minimum power dissipation.

⁸All dynamic characteristics use V_DD= 5 V.

Rev. 0 | Page 3 of 20

1 234 5 6 7...20

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