DAC1222LCN 12-bit D/A Converter

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The DAC1222LCN is designed for 10 and 12-bit binary multiplying digital-to-analog converters. A deposited thin film R-2R resistor ladder divides the reference current and provides the circuit with excellent temperature tracking characteristics (0.0002%/§C linearity error temperature coefficient maximum). The circuit uses CMOS current switches and drive circuitry to achieve low power consumption (30 mw max) and low output leakages (200 n A max). The digital inputs are compatible with DTL/TTL logic levels as well as full CMOS logic level swings. This part, combined with an external amplifier and voltage reference, can be used as a standard D/A converter; however, it is also very attractive for multiplying applications (such as digitally controlled gain blocks) since its linearity error is essentially independent of the voltage reference. All inputs are protected from damage due to static discharge by diode clamps to V+ and ground.

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DAC0832LCN Pinout

DAC0832LCN Pin Configuration

Pin Number	Pin Name	Description
1	Iout1	Current Output 1
2	Iout2	Current Output 2
3	GND	Ground
4	A1	Digital Input Bit 1
5	A2	Digital Input Bit 2
6	A3	Digital Input Bit 3
7	A4	Digital Input Bit 4
8	A5	Digital Input Bit 5
9	A6	Digital Input Bit 6
10	A7	Digital Input Bit 7
11	A8	Digital Input Bit 8
12	A9	Digital Input Bit 9
13	A10	Digital Input Bit 10
14	A11	Digital Input Bit 11
15	A12	Digital Input Bit 12
16	V+	Positive Supply
17	Vref IN	Voltage Reference
18	Rfb	Resistor Feedback