AD1870_15 datasheet(3/20 Pages) AD

Part #	AD1870

Description	Single-Supply 16-Bit Stereo ADC

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DIGITAL I/O

Min

Typ

Max

Unit

Input Voltage HI (VIH)

2.4

V

Input Voltage LO (VIL)

0.8

V

Input Leakage (IIH @ VIH = 5 V)

10

µA

Input Leakage (IIL @ VIL = 0 V)

10

µA

Output Voltage HI (VOH @ IOH = –2 mA)

2.4

V

Output Voltage LO (VOL @ IOL = 2 mA)

0.4

V

Input Capacitance

15

pF

DIGITAL TIMING (Guaranteed over –40

°C to +85°C, DV

DD = AVDD = 5 V

± 5%. Refer to Figures 17–19.)

Min

Typ

Max

Unit

tCLKIN

CLKIN Period

48

81

780

ns

fCLKIN

CLKIN Frequency (1/tCLKIN)

1.28

12.288

20.48

MHz

tCPWL

CLKIN LO Pulsewidth

15

ns

tCPWH

CLKIN HI Pulsewidth

15

ns

tRPWL

RESET LO Pulsewidth

50

ns

tBPWL

BCLK LO Pulsewidth

15

ns

tBPWH

BCLK HI Pulsewidth

15

ns

tDLYCKB

CLKIN Rise to BCLK Xmit (Master Mode)

15

ns

tDLYBLR

BCLK Xmit to L

RCK Transition (Master Mode)

15

ns

tDLYBWR

BCLK Xmit to WCLK Rise

10

ns

tDLYBWF

BCLK Xmit to WCLK Fall

10

ns

tDLYDT

BCLK Xmit to DATA/TAG Valid (Master Mode)

10

ns

tSETLRBS

L

RCK Setup to BCLK Sample (Slave Mode)

10

ns

tDLYLRDT

L

RCK Transition to DATA/TAG Valid (Slave Mode)

No MSB Delay Mode (for MSB Only)

40

ns

tSETWBS

WCLK Setup to BCLK Sample (Slave Mode)

Data Position Controlled by WCLK Input Mode

10

ns

tDLYBDT

BCLK Xmit to DATA/TAG Valid (Slave Mode)

All Bits Except MSB in No MSB Delay Mode

All Bits in MSB Delay Mode

40

ns

POWER

Min

Typ

Max

Unit

Supplies

Voltage, Analog and Digital

4.75

5

5.25

V

Analog Current

43

52

mA

Analog Current–Power-Down (CLKIN Running)

25

µA

Digital Current

9.3

12

mA

Digital Current–Power-Down (CLKIN Running)

50

µA

Dissipation

Operation–Both Supplies

263

315

mW

Operation–Analog Supply

216

260

mW

Operation–Digital Supply

47

55

mW

Power-Down–Both Supplies (CLKIN Running)

375

µW

Power-Down–Both Supplies (CLKIN Not Running)

375

µW

Power Supply Rejection (See TPC 5)

1 kHz 300 mV p-p Signal at Analog Supply Pins

90

dB

20 kHz 300 mV p-p Signal at Analog Supply Pins

68

dB

Stop Band (>0.55

× fS)—any 300 mV p-p Signal

110

dB

AD1870

REV. A

–3–

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AD1870 Datasheet(PDF) 3 Page - Analog Devices

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