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DAC8820

V

DD

V

DD

U2

GND

R

OFS

R

FB

V

OUT

I

OUT

V

REF

V

REF

U1

C1

10 pF

OPA277

U3

OPA277

R2

′

15 k

Ω

R3

′

50 k

Ω

R1

′

150 k

Ω

R3

50

Ω

R2

15 k

Ω

R1

150 k

Ω

LOAD

I

L

C2

10pF

Cross-Reference

DAC8820

SBAS358C – AUGUST 2005 – REVISED JUNE 2006

APPLICATION INFORMATION (continued)

Figure 43. Programmable Bidirectional Current Source Circuit

The DAC8820 has an industry-standard pinout. Table 2 provides the cross-reference information.

Table 2. Cross-Reference

SPECIFIED

CROSS-

TEMPERATURE

PACKAGE

PACKAGE

REFERENCE

PRODUCT

BIT

INL (LSB)

DNL (LSB)

RANGE

DESCRIPTION

OPTION

PART

DAC8820IBDB

16

±2

±1

–40

°C to +85°C

SSOP-28

SSOP-28

LTC1597BIG

DAC8820ICDB

16

±1

±1

–40

°C to +85°C

SSOP-28

SSOP-28

LTC1597AIG

16

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