Specifications are subject to change without notice.

331

R/2R Ladder Networks are available in both DIP and SIP

(Molded or Conformal) configurations.

16

1

9

8

2R

R

2R

15

2

2R

R

14

3

2R

R

13

4

2R

R

12

5

2R

R

11

6

2R

R

10

7

2R

R

2R

OUT

RT

16-PIN

8-BIT

DIP

PIN

BIT

18

23

4

5

6

7

MSB

LSB

2

2R

R

3

2R

R

4

2R

R

5

2R

R

6

2R

R

7

2R

R

8

2R

R

9

2R

1

BIT OUT

18

23

4

5

6

7

MSB

LSB

PIN

10

2R

RT

10-PIN

8-BIT

SIP

The R/2R Ladder Network is commonly used for Digital to

Analog (D/A) conversions and Analog to Digital (A/D) conversion

by successive approximations. The bits of the ladder are the

points at which input signals are presented to the ladder and

the output terminal (OUT) is the point at which the output is

taken from the R/2R ladder. This terminal (OUT) is commonly

used to drive an operational amplifier. RT (the terminating resis-

tor) is always connected to ground.

Standard R/2R Ladder Networks have a resistance tolerance of

±2.0% (±1.0% available on all but low profile SIPs).

Standard R/2R Ladder Networks

Availability is as follows:

DIP/SMD

SIP-CONFORMAL

SIP MOLDED

14 Pin - 7 Bit

6 Pin - 4 Bit

6 Pin - 4 Bit

16 Pin - 8 Bit

7 Pin - 5 Bit

8 Pin - 6 Bit

8 Pin - 6 Bit

10 Pin - 8 Bit

9 Pin - 7 Bit

10 Pin - 8 Bit

11 Pin - 9 Bit

12 Pin -10 Bit

14 Pin -12 Bit

Resistor Power Ratings @ 70˚ C

Low Profile SIP & DIP ....................................................

.125W

Medium Profile SIP ........................................................

.170W

High Profile SIP ..............................................................

.200W

How To Order R/2R Ladder Networks

41 16 R - R2R - 503

Model

Resistance/Capacitance Code

(41 = Molded DIP)

(For value of R). 2R is double this value.

(43 = Molded SIP)

• First 2 digits are significant.

(44 = Wide Body SMD)

• Third digit represents the number

(46 = Conformal SIP)

of zeros to follow.

(48 = SMD)

Number of Pins

Physical Configuration

Electrical Configuration

(R = Low Profile - Molded)

• R2R = R/2R Ladder Network

(X = Low Profile - Conformal)

(M = Medium Profile)

(H = High Profile)

(P = Medium Body SOIC)

R/2R Ladder Networks