AD7708BRZ datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > Analog mixed-signal IC> converter> AD7708BRZ

AD7708BRZ: Description10-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO28, PLASTIC, SOIC-28; CategoryAnalog mixed-signal IC converter; File Size1012KB，45 Pages; ManufacturerRochester Electronics; Websitehttps://www.rocelec.com/; Environmental Compliance

Download Datasheet Parametric Compare View All

AD7708BRZ Online Shopping

Suppliers	Part Number	Price	MOQ	In stock
	AD7708BRZ	-	-	View	Buy Now

AD7708BRZ Overview

10-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO28, PLASTIC, SOIC-28

AD7708BRZ Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Rochester Electronics
Parts packaging code	SOIC
package instruction	SOP,
Contacts	28
Reach Compliance Code	unknown
Maximum analog input voltage	2.56 V
Minimum analog input voltage	-2.56 V
Converter type	ADC, DELTA-SIGMA
JESD-30 code	R-PDSO-G28
JESD-609 code	e3
length	17.9 mm
Maximum linear error (EL)	0.0015%
Humidity sensitivity level	1
Number of analog input channels	10
Number of digits	16
Number of functions	1
Number of terminals	28
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Output bit code	BINARY, OFFSET BINARY
Output format	SERIAL
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	260
Maximum seat height	2.65 mm
Nominal supply voltage	3 V
surface mount	YES
Temperature level	INDUSTRIAL
Terminal surface	MATTE TIN
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	40
width	7.5 mm

Preview

Download Datasheet

View All

D ts e t

aa h e

R c e t r lc r nc

o h se Ee to is

Ma u a t r dCo o e t

n fc u e

mp n n s

R c e tr b a d d c mp n ns ae

o h se rn e

o oet r

ma ua trd u ig ete dewaes

n fcue sn i r i/ fr

p rh s d f m te oiia s p l r

uc a e r

o h r n l u pi s

o R c e tr waes rce td f m

r o h se

fr e rae r

te oiia I. Al rce t n ae

r nl P

l e rai s r

d n wi tea p o a o teOC

o e t h p rv l f h

P r aetse u igoiia fcoy

at r e td sn r n la tr

ts p o rmso R c e tr e eo e

e t rga

r o h se d v lp d

ts s lt n t g aa te p o u t

e t oui s o u rne

rd c

me t o e c e teOC d t s e t

es r x e d h

M aa h e.

Qu l yOv riw

e ve

• IO- 0 1

S 90

•A 92 cr ct n

S 1 0 et ai

• Qu l e Ma ua trr Ls (

ai d

n fcues it QML MI- R -

) LP F

385

•C a sQ Mitr

lay

•C a sVS a eL v l

p c ee

• Qu l e S p l r Ls o D sr uos( L )

ai d u pi s it f it b tr QS D

•R c e trsacic l u pir oD A a d

o h se i

r ia s p l t L n

me t aln u t a dD A sa d r s

es lid sr n L tn ad .

R c e tr lcrnc , L i c mmi e t

o h se Ee t is L C s o

tdo

s p ligp o u t ta s t f c so r x e t-

u pyn rd cs h t ai y u tme e p ca

t n fr u lya daee u loto eoiial

i s o q ai n r q a t h s r n l

s p l db id sr ma ua trr.

u pi

e yn ut

y n fcues

T eoiia ma ua trr d ts e t c o a yn ti d c me t e e t tep r r n e

h r n l n fcue’ aa h e a c mp n ig hs o u n r cs h ef ma c

a ds e ic t n o teR c e tr n fcue v rino ti d vc . o h se Ee t n

n p c ai s f h o h se ma ua trd eso f hs e ie R c e tr lcr -

isg aa te tep r r n eo i s mio d co p o u t t teoiia OE s e ic -

c u rne s h ef ma c ft e c n u tr rd cs o h r n l M p c a

t n .T pc lv le aefr eee c p r o e o l. eti mii m o ma i m rt g

i s ‘y ia’ au s r o rfrn e up s s ny C r n nmu

r xmu ai s

ma b b s do p o u t h rceiain d sg , i lt n o s mpetsig

y e a e n rd c c aa tr t , e in smuai , r a l e t .

z o

0 3 ohs E cr i , L . lRg s eevd 7 1 0 3

e e oc

T l r m r, l s v iw wrcl . m

o e n oe p ae it w . e c o

o ec

AD7708/AD7718

TABLE OF CONTENTS

FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

FUNCTIONAL BLOCK DIAGRAM . . . . . . . . . . . . . . . . . 1

GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 1

AD7718 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . 3

AD7708 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . 6

TIMING CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . 9

ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . 10

ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

PIN FUNCTION DESCRIPTIONS . . . . . . . . . . . . . . . . . 12

PIN CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . 13

ADC CIRCUIT INFORMATION . . . . . . . . . . . . . . . . . . . 15

Signal Chain Overview (CHOP Enabled, CHOP = 0) . . . 15

ADC NOISE PERFORMANCE CHOP ENABLED

(CHOP = 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Signal Chain Overview (CHOP Disabled CHOP = 1) . . . 19

ADC NOISE PERFORMANCE CHOP DISABLED

(CHOP = 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

ON-CHIP REGISTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Communications Register . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Mode Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Operating Characteristics when Addressing the

Mode and Control Registers . . . . . . . . . . . . . . . . . . . . . . . 28

ADC Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Filter Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

I/O Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

ADC Data Result Register . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Unipolar Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Bipolar Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

ADC Offset Calibration Coefficient Registers . . . . . . . . . . . 31

ADC Gain Calibration Coefficient Register . . . . . . . . . . . . . 31

ID Register (ID) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

User Nonprogrammable Test Registers . . . . . . . . . . . . . . . . 31

Configuring the AD7708/AD7718 . . . . . . . . . . . . . . . . . . . . 32

DIGITAL INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

MICROCOMPUTER/MICROPROCESSOR

INTERFACING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

AD7708/AD7718 to 68HC11 Interface . . . . . . . . . . . . . . . . 34

AD7708/AD7718-to-8051 Interface . . . . . . . . . . . . . . . . . . 35

AD7708/AD7718-to-ADSP-2103/ADSP-2105 Interface . . . 36

BASIC CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . 36

Analog Input Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Single-Ended Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Chop Mode of Operation (CHOP = 0) . . . . . . . . . . . . . . . . 37

Nonchop Mode of Operation (CHOP = 1) . . . . . . . . . . . . . 38

Programmable Gain Amplifier . . . . . . . . . . . . . . . . . . . . . . . 38

Bipolar/Unipolar Configuration . . . . . . . . . . . . . . . . . . . . . . 38

Data Output Coding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Oscillator Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Reference Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

RESET

Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Power-Down Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Grounding and Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

APPLICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Data Acquisition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Programmable Logic Controllers . . . . . . . . . . . . . . . . . . . . . 41

Converting Single-Ended Inputs. . . . . . . . . . . . . . . . . . . . . 42

Combined Ratiometric and Absolute Value

Measurement System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Optimizing Throughput while Maximizing 50 Hz

and 60 Hz Rejection in a Multiplexed Data

Acquisition System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

OUTLINE DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . 44

–2–

REV. 0

AD7708BRZ Related Products

	AD7708BRZ	AD7718BR-REEL7	AD7708BRU-REEL7	AD7718BRZ	AD7718BR	AD7718BRU	AD7708BRU
Description	10-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO28, PLASTIC, SOIC-28	10-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO28, PLASTIC, SOIC-28	10-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO28, PLASTIC, TSSOP-28	10-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO28, ROHS COMPLIANT, PLASTIC, SOIC-28	10-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO28, PLASTIC, SOIC-28	10-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO28, PLASTIC, TSSOP-28	10-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO28, PLASTIC, TSSOP-28
Is it lead-free?	Lead free	Contains lead	Contains lead	Lead free	Contains lead	Contains lead	Contains lead
Is it Rohs certified?	conform to	incompatible	incompatible	conform to	incompatible	incompatible	incompatible
Parts packaging code	SOIC	SOIC	SSOP	SOIC	SOIC	SSOP	SSOP
package instruction	SOP,	SOP,	TSSOP,	SOP,	SOP,	TSSOP,	TSSOP,
Contacts	28	28	28	28	28	28	28
Reach Compliance Code	unknown	unknown	unknown	unknown	unknown	unknown	unknown
Maximum analog input voltage	2.56 V	2.56 V	2.56 V	2.56 V	2.56 V	2.56 V	2.56 V
Minimum analog input voltage	-2.56 V	-2.56 V	-2.56 V	-2.56 V	-2.56 V	-2.56 V	-2.56 V
Converter type	ADC, DELTA-SIGMA	ADC, DELTA-SIGMA	ADC, DELTA-SIGMA	ADC, DELTA-SIGMA	ADC, DELTA-SIGMA	ADC, DELTA-SIGMA	ADC, DELTA-SIGMA
JESD-30 code	R-PDSO-G28	R-PDSO-G28	R-PDSO-G28	R-PDSO-G28	R-PDSO-G28	R-PDSO-G28	R-PDSO-G28
JESD-609 code	e3	e0	e0	e3	e0	e0	e0
length	17.9 mm	17.9 mm	9.7 mm	17.9 mm	17.9 mm	9.7 mm	9.7 mm
Maximum linear error (EL)	0.0015%	0.001%	0.0015%	0.001%	0.001%	0.001%	0.0015%
Humidity sensitivity level	1	1	1	1	1	1	1
Number of analog input channels	10	10	10	10	10	10	10
Number of digits	16	24	16	24	24	24	16
Number of functions	1	1	1	1	1	1	1
Number of terminals	28	28	28	28	28	28	28
Maximum operating temperature	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C
Output bit code	BINARY, OFFSET BINARY	BINARY, OFFSET BINARY	BINARY, OFFSET BINARY	BINARY, OFFSET BINARY	BINARY, OFFSET BINARY	BINARY, OFFSET BINARY	BINARY, OFFSET BINARY
Output format	SERIAL	SERIAL	SERIAL	SERIAL	SERIAL	SERIAL	SERIAL
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	SOP	SOP	TSSOP	SOP	SOP	TSSOP	TSSOP
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260	240	240	260	240	240	240
Maximum seat height	2.65 mm	2.65 mm	1.2 mm	2.65 mm	2.65 mm	1.2 mm	1.2 mm
Nominal supply voltage	3 V	3 V	3 V	3 V	3 V	3 V	3 V
surface mount	YES	YES	YES	YES	YES	YES	YES
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Terminal surface	MATTE TIN	TIN LEAD	TIN LEAD	MATTE TIN	TIN LEAD	TIN LEAD	TIN LEAD
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
Terminal pitch	1.27 mm	1.27 mm	0.65 mm	1.27 mm	1.27 mm	0.65 mm	0.65 mm
Terminal location	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	40	30	30	40	30	30	30
width	7.5 mm	7.5 mm	4.4 mm	7.5 mm	7.5 mm	4.4 mm	4.4 mm
Maker	Rochester Electronics	-	Rochester Electronics	Rochester Electronics	Rochester Electronics	Rochester Electronics	Rochester Electronics

Recommended Resources

Single-channel flashing light string circuit (1)

Electrical schematic diagram of JDW91-10 external positioning grooving machine (1)

Circuit diagram for detecting vibration

100MHz high precision crystal oscillator

Constant current/constant voltage (CC/CV) charging circuit

875p computer motherboard circuit diagram_082

Shortcut: A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW AX AY AZ B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 BA BB BC BD BE BF BG BH BI BJ BK BL BM BN BO BP BQ BR BS BT BU BV BW BX BY BZ C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 CA CB CC CD CE CF CG CH CI CJ CK CL CM CN CO CP CQ CR CS CT CU CV CW CX CY CZ D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DA DB DC DD DE DF DG DH DI DJ DK DL DM DN DO DP DQ DR DS DT DU DV DW DX DZ

Popular Components