Datasheet > AD4695BCPZ

AD4695BCPZ

更新时间： 2022-05-14 22:21:34

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
96页	1310K
描述
16-Bit, 16-Channel, 500 kSPS/1 MSPS, Easy Drive Multiplexed SAR ADCs

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AD4695BCPZ 数据手册

AD4695/AD4696

SPECIFICATIONS

Data Sheet

AVDD = 3.15 V to 5.5 V, LDO_IN = 2.4 V to 5.5 V with internal low dropout (LDO) enabled, LDO_IN = AGND with internal LDO

disabled, VDD = 1.71 V to 1.89 V with internal LDO disabled, VIO = 1.14 V to 1.98 V, AGND = REFGND = IOGND = 0 V, reference

voltage (V_REF) = 2.4 V to 5.1 V, REF = V_REF, sample rate (f_S) = 1 MSPS for the AD4696, f_S= 500 kSPS for the AD4695, input frequency

(f_IN) = 1 kHz, digital output load capacitance = 20 pF, autocycle mode disabled, analog input high-Z mode enabled, reference input high-Z mode

enabled, busy indicator and alert indicator not enabled on BSY_ALT_GP0, no active overvoltage protection clamps, and T_A= −40°C to

+125°C, unless otherwise noted.

Table 1.

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

RESOLUTION

Bits

ANALOG INPUT^{1, 2}

Input Voltage Range

Positive ADC input voltage (IN+) – negative

ADC input voltage (IN−)

Unipolar Mode

+V_REF

+V_REF/2

Pseudobipolar Mode

Operating Input Voltage

IN+ − REFGND

−V_REF/2

IN− = REFGND

−0.1

+V_REF

V_REF+ 0.1

IN− = COM, odd numbered input

Unipolar mode

IN− − REFGND

−0.1

V_REF/2 –

0.1

V_REF+ 0.1

V_REF/2 + 0.1

Pseudobipolar mode

V_REF/2

Common-Mode Rejection Ratio (CMRR)

Analog Input Leakage Current³

SAMPLING DYNAMICS

Sample Rate

f_IN= 250 kHz, IN− = COM, odd numbered input

Autocycle mode disabled

69.5

AD4695

AD4696

500

kSPS

MSPS

Autocycle Sample Period

Autocycle mode enabled

AC_CYC = 0x0

AC_CYC = 0x1

AC_CYC = 0x2

AC_CYC = 0x3

AC_CYC = 0x4

AC_CYC = 0x5

AC_CYC = 0x6

AC_CYC = 0x7

8.5

11.5

μs

100

200

400

800

115

230

460

920

μs

170

340

680

Aperture Delay

Aperture Jitter

0.5

ps rms

DC ACCURACY

No Missing Codes

−1

−0.6

Bits

LSB

rms

Integral Nonlinearity Error (INL)

Differential Nonlinearity Error (DNL)

Transition Noise

V_REF= 5 V, oversampling ratio (OSR) = 1

V_REF= 5 V, OSR = 1

V_REF= 5 V

0.4

0.3

0.5

+0.6

Offset Error⁴

V_REF= 5 V, T_A= 25°C

0.03

V_REF= 5 V, T_A= −40°C to +125°C

V_REF= 5 V, T_A= 25°C

V_REF= 5 V, T_A= −40°C to +125°C

V_REF= 5 V, T_A= 25°C

V_REF= 5 V, T_A= −40°C to +125°C

V_REF= 5 V, T_A= 25°C

V_REF= 5 V, T_A= −40°C to +125°C

−0.43

+0.43

%FS⁵

%FS

Offset Error Match⁴

Gain Error⁴

0.025

0.001

0.002

−0.23

+0.23

−0.025

−0.012

+0.025

+0.012

Gain Error Match⁴

Rev. 0 | Page 4 of 96

1 2 345 6 7...96

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