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Digital-to-Analog Converters. MCP48FVB21 Datasheet

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Digital-to-Analog Converters. MCP48FVB21 Datasheet






MCP48FVB21 Converters. Datasheet pdf. Equivalent




MCP48FVB21 Converters. Datasheet pdf. Equivalent





Part

MCP48FVB21

Description

8-/10-/12-Bit Single/Dual Voltage Output Digital-to-Analog Converters



Feature


MCP48FVBXX 8-/10-/12-Bit Single/Dual Vo ltage Output Volatile Digital-to-Analog Converters with SPI Interface Feature s • Operating Voltage Range: - 2.7V t o 5.5V - full specifications - 1.8V to 2.7V - reduced device specifications Output Voltage Resolutions: - 8-bit: MCP48FVB0X (256 Steps) - 10-bit: MCP48F VB1X (1024 Steps) - 12-bit: MCP48FVB2X (4096 Steps) • Rail-to.
Manufacture

Microchip

Datasheet
Download MCP48FVB21 Datasheet


Microchip MCP48FVB21

MCP48FVB21; -Rail Output • Fast Settling Time of 7 .8 µs (typical) • DAC Voltage Refere nce Source Options: - Device VDD - Exte rnal VREF pin (buffered or unbuffered) - Internal Band Gap (1.22V typical) • Output Gain Options: - Unity (1x) - 2x • Power-on/Brown-out Reset Protectio n • Power-Down Modes: - Disconnects o utput buffer (High Impedance) - Selecti on of VOUT pull-down resistor.


Microchip MCP48FVB21

s (100 k or 1 k) • Low Power Con sumption: - Normal operation: <180 µA (Single), 380 µA (Dual) - Power-down o peration: 650 nA typical • SPI Interf ace: - Supports ‘00’ and ‘11’ m odes - Up to 20 MHz writes and 10 MHz r eads - I .


Microchip MCP48FVB21

.

Part

MCP48FVB21

Description

8-/10-/12-Bit Single/Dual Voltage Output Digital-to-Analog Converters



Feature


MCP48FVBXX 8-/10-/12-Bit Single/Dual Vo ltage Output Volatile Digital-to-Analog Converters with SPI Interface Feature s • Operating Voltage Range: - 2.7V t o 5.5V - full specifications - 1.8V to 2.7V - reduced device specifications Output Voltage Resolutions: - 8-bit: MCP48FVB0X (256 Steps) - 10-bit: MCP48F VB1X (1024 Steps) - 12-bit: MCP48FVB2X (4096 Steps) • Rail-to.
Manufacture

Microchip

Datasheet
Download MCP48FVB21 Datasheet




 MCP48FVB21
MCP48FVBXX
8-/10-/12-Bit Single/Dual Voltage Output Volatile
Digital-to-Analog Converters with SPI Interface
Features
• Operating Voltage Range:
- 2.7V to 5.5V - full specifications
- 1.8V to 2.7V - reduced device specifications
• Output Voltage Resolutions:
- 8-bit: MCP48FVB0X (256 Steps)
- 10-bit: MCP48FVB1X (1024 Steps)
- 12-bit: MCP48FVB2X (4096 Steps)
• Rail-to-Rail Output
• Fast Settling Time of 7.8 µs (typical)
• DAC Voltage Reference Source Options:
- Device VDD
- External VREF pin (buffered or unbuffered)
- Internal Band Gap (1.22V typical)
• Output Gain Options:
- Unity (1x)
- 2x
• Power-on/Brown-out Reset Protection
• Power-Down Modes:
- Disconnects output buffer (High Impedance)
- Selection of VOUT pull-down resistors
(100 kor 1 k)
• Low Power Consumption:
- Normal operation: <180 µA (Single),
380 µA (Dual)
- Power-down operation: 650 nA typical
• SPI Interface:
- Supports ‘00’ and ‘11’ modes
- Up to 20 MHz writes and 10 MHz reads
- Input buffers support interfacing to
low-voltage digital devices
• Package Types: 10-lead MSOP
• Extended Temperature Range: -40°C to +125°C
Package Types
MCP48FVBX1
MSOP
Single
VDD
CS
VREF0
VOUT0
NC
1
2
3
4
5
10 SDI
9 SCK
8 SDO
7 VSS
6 LAT0/HVC
MCP48FVBX2
MSOP
Dual
VDD
CS
VREF(1)
VOUT0
VOUT1
1
2
3
4
5
10
9
8
7
6
SDI
SCK
SDO
VSS
LAT/HVC (1)
Note 1: Associated with both DAC0 and DAC1
General Description
The MCP48FVBXX are Single- and Dual-channel 8-bit,
10-bit, and 12-bit buffered voltage output
Digital-to-Analog Converters (DAC) with volatile
memory and an SPI serial interface.
The VREF pin, the device VDD or the internal band gap
voltage can be selected as the DAC’s reference
voltage. When VDD is selected, VDD is connected
internally to the DAC reference circuit. When the VREF
pin is used, the user can select the output buffer’s gain
to be 1 or 2. When the gain is 2, the VREF pin voltage
should be limited to a maximum of VDD/2.
These devices have an SPI-compatible serial interface.
Write commands are supported up to 20 MHz while
read commands are supported up to 10 MHz.
Applications
• Set Point or Offset Trimming
• Sensor Calibration
• Low-Power Portable Instrumentation
• PC Peripherals
• Data Acquisition Systems
• Motor Control
2015 Microchip Technology Inc.
DS20005466A-page 1




 MCP48FVB21
MCP48FVBXX
MCP48FVBX1 Device Block Diagram (Single-Channel Output)
VDD Power-up/
VSS Brown-out Control
SDI
SDO
SCK
CS
VREF0
SPI Serial Interface Module
and
Control Logic
VREF1:VREF0
and PD1:PD0 VDD
Band Gap VBG
(1.22V)
+
-
(1)
VDD
Memory (32x16)
DAC0 (Vol)
VREF (Vol)
Power-down (Vol)
Gain (Vol)
Status (Vol)
PD1:PD0 and
VREF1:VREF0
PD1:PD0
Gain
Op
Amp
VSS PD1:PD0
LAT0/HVC
VREF1:VREF0
VOUT0
Note 1: If Internal Band Gap is selected, this buffer has a 2x gain. If the G bit = ‘1’, this is a total gain of 4.
DS20005466A-page 2
2015 Microchip Technology Inc.




 MCP48FVB21
MCP48FVBXX
MCP48FVBX2 Device Block Diagram (Dual-Channel Output)
VDD
VSS
SDI
SDO
SCK
CS
VREF
LAT/HVC
Power-up/
Brown-out Control
SPI Serial Interface Module
and
Control Logic
VREF1:VREF0
and PD1:PD0 VDD
Band Gap VBG
(1.22V)
+
- (1)
VDD
Memory (32x16)
DAC0 and DAC1 (Vol)
VREF (Vol)
Power-down (Vol)
Gain (Vol)
Status (Vol)
PD1:PD0 and
VREF1:VREF0
Gain
Op
Amp
PD1:PD0
PD1:PD0
VSS
VREF1:VREF0
VREF1:VREF0
and PD1:PD0 VDD
Band Gap
(1.22V)
intVR1
+
- (1)
VDD
PD1:PD0 and
VREF1:VREF0
PD1:PD0
VSS
VREF1:VREF0
Gain
Op
Amp
PD1:PD0
VOUT0
VOUT1
Note 1: If Internal Band Gap is selected, this buffer has a 2x gain, if the G bit = ‘1’, this is a total gain of 4.
2015 Microchip Technology Inc.
DS20005466A-page 3



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