AD7845AQ

Unknown

Analog Devices Inc./Maxim Integrated

DIGITAL TO ANALOG CONVERTERS - DAC COMPLETE 12 BIT MDAC IC

Find alt

Alpha

AD7845AQ

Unknown

Analog Devices Inc./Maxim Integrated

DIGITAL TO ANALOG CONVERTERS - DAC COMPLETE 12 BIT MDAC IC

Find alt

Alpha

Description Specifications Series Pricing CAD Documents

Description

General part information

AD7845 Series

The AD7845 is the industry's first 4-quadrant multiplying D/A converter with an on-chip amplifier. It is fabricated on the LC2MOS process, which allows precision linear components and digital circuitry to be implemented on the same chip.The 12 data inputs drive latches which are controlled by standard CS andWRsignals, making microprocessor interfacing simple. For stand-alone operation, theCSandWRinputs can be tied to ground, making all latches transparent. All digital inputs are TTL and 5 V CMOS compatible.The output amplifier can supply ±10 V into a 2k(ohm) load. It is internally compensated, and its input offset voltage is low due to laser trimming at wafer level. For normal operation, RFBis tied to VOUT, but the user may alternatively choose RA, RBor RCto scale the output voltage range.

Technical Specifications

Parameters and characteristics for this part

Specification	AD7845AQ

Architecture	R-2R
Data Interface	Parallel
Differential Output	No
DNL (Max) (LSB)	1 LSB
INL (Max) (LSB)	1 LSB
Mounting Type	Through Hole
Number of Bits	12 bits
Number of D/A Converters	1 count
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Output Type	Voltage - Buffered
Package Length	0.3 in
Package Name	24-CDIP
Package Width	7.62 mm
Reference Type	External
Settling Time	5 µs
Voltage - Supply, Analog (Maximum)	15.75 V
Voltage - Supply, Analog (Nominal Negative)	-14.25 V
Voltage - Supply, Analog (Nominal Positive)	14.25 V

AD7845 Series

Part	INL (Max) (LSB)	DNL (Max) (LSB)	Output Type	Number of D/A Converters	Voltage - Supply, Analog (Nominal Positive)	Voltage - Supply, Analog (Maximum)	Voltage - Supply, Analog (Nominal Negative)	Mounting Type	Package Length	Package Name	Package Width	Architecture	Differential Output	Operating Temperature (Max)	Operating Temperature (Min)	Reference Type	Data Interface	Package / Case	Settling Time	Number of Bits
Analog Devices Inc./Maxim Integrated AD7845KP	0.75 LSB	1 LSB	Voltage - Buffered	1 count	14.25 V	15.75 V	-14.25 V	Surface Mount	11.51 mm	28-PLCC	11.51 mm	R-2R	No	70 °C	0 °C	External	Parallel	28-LCC (J-Lead)	5 µs	12 bits
Analog Devices Inc./Maxim Integrated AD7845ARZ	1 LSB	1 LSB	Voltage - Buffered	1 count	14.25 V	15.75 V	-14.25 V	Surface Mount	0.295 in	24-SOIC	7.5 mm	R-2R	No	85 °C	-40 °C	External	Parallel		5 µs	12 bits
Analog Devices Inc./Maxim Integrated AD7845TQ/883B								Through Hole	0.3 in	24-CDIP	7.62 mm									12 bits
Analog Devices Inc./Maxim Integrated AD7845BR								Surface Mount	0.295 in	24-SOIC	7.5 mm
Analog Devices Inc./Maxim Integrated AD7845AR								Surface Mount	0.295 in	24-SOIC	7.5 mm
Analog Devices Inc./Maxim Integrated AD7845SE/883B								Surface Mount	0.45 in	28-LCC	11.43 mm							28-LCC		12 bits
Analog Devices Inc./Maxim Integrated AD7845JN	1 LSB	1 LSB	Voltage - Buffered	1 count	14.25 V	15.75 V	-14.25 V	Through Hole	0.3 in	24-DIP 24-PDIP	7.62 mm	R-2R	No	70 °C	0 °C	External	Parallel		5 µs	12 bits
Analog Devices Inc./Maxim Integrated AD7845JP-REEL								Surface Mount	11.51 mm	28-PLCC	11.51 mm							28-LCC (J-Lead)		12 bits
Analog Devices Inc./Maxim Integrated AD7845TQ	0.75 LSB	1 LSB	Voltage - Buffered	1 count	14.25 V	15.75 V	-14.25 V	Through Hole	0.3 in	24-CDIP	7.62 mm	R-2R	No	125 °C	-55 °C	External	Parallel		5 µs	12 bits
Analog Devices Inc./Maxim Integrated AD7845AQ	1 LSB	1 LSB	Voltage - Buffered	1 count	14.25 V	15.75 V	-14.25 V	Through Hole	0.3 in	24-CDIP	7.62 mm	R-2R	No	85 °C	-40 °C	External	Parallel		5 µs	12 bits

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Create a free account to access distributor pricing data.

CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

AD7845: LC2MOS Complete 12-Bit Multiplying DAC Data Sheet (Rev.B)

Package Drawing - 24-Lead CerDIP (Narrow 0.3 Inch)