AD1580BRT datasheet(10/12 Pages) AD

部品番号	AD1580BRT

部品情報	1.2 V Micropower, Precision Shunt Voltage Reference

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AD1580

Rev. F | Page 10 of 12

The AD1580 is ideal for creating the reference level to use with 12-bit

multiplying DACs, such as the AD7943, AD7945, and AD7948.

In the single-supply bias mode (see Figure 26), the impedance

seen looking into the IOUT2 terminal changes with DAC code. If

the AD1580 drives IOUT2 and AGND directly, less than 0.2 LSBs

of additional linearity error results. The buffer amp eliminates

any linearity degradation that could result from variations in

the reference level.

DAC

RBF

AGND

DGND

A1

C1

3.3V

41.2k

Ω

3.3V

AD1580

SIGNAL GROUND

A1: OP295

AD822

OP2283

A1

VREF

VIN

VDD

IOUT1

IOUT2

VOUT

AD7943/

AD7945/

AD7948

Figure 26. Single-Supply System

同様の部品番号 - AD1580BRT

メーカー	部品番号	データシート	部品情報
Analog Devices	AD1580BRT-R2	368Kb / 12P	1.2 V Micropower, Precision Shunt Voltage Reference REV. F
	AD1580BRT-REEL7	368Kb / 12P	1.2 V Micropower, Precision Rev. F
	AD1580BRT-REEL7	368Kb / 12P	1.2 V Micropower, Precision Shunt Voltage Reference Rev. F
	AD1580BRT-REEL7	368Kb / 12P	1.2 V Micropower, Precision Shunt Voltage Reference Rev. F
	AD1580BRT-REEL7	368Kb / 12P	1.2 V Micropower, Precision Shunt Voltage Reference REV. F

メーカー	部品番号	データシート	部品情報
Analog Devices	AD1580ART-REEL7	368Kb / 12P	1.2 V Micropower, Precision Shunt Voltage Reference Rev. F
	AD1580BRT-R2	368Kb / 12P	1.2 V Micropower, Precision Shunt Voltage Reference REV. F
	AD1580ART	368Kb / 12P	1.2 V Micropower, Precision Shunt Voltage Reference Rev. F
	ADR1581	904Kb / 12P	1.25 V Micropower, Precision Shunt Voltage Reference REV. 0
	ADR1581	524Kb / 12P	1.25 V Micropower, Precision Shunt Voltage Reference REV. 0
	ADR1581BRTZ-REEL7	904Kb / 12P	1.25 V Micropower, Precision Shunt Voltage Reference REV. 0
National Semiconductor ...	LM4051	301Kb / 14P	Precision Micropower Shunt Voltage Reference
Texas Instruments	LM4041C	509Kb / 24P	[Old version datasheet] PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE
National Semiconductor ...	LM4050	287Kb / 15P	Precision Micropower Shunt Voltage Reference
Texas Instruments	LM4040-N	1Mb / 33P	[Old version datasheet] Precision Micropower Shunt Voltage Reference