diff --git a/drivers/iio/dac/ad5686-spi.c b/drivers/iio/dac/ad5686-spi.c
index 6bb09e9..1df9143 100644
--- a/drivers/iio/dac/ad5686-spi.c
+++ b/drivers/iio/dac/ad5686-spi.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0+
 /*
- * AD5672R, AD5676, AD5676R, AD5684, AD5684R, AD5684R, AD5685R, AD5686, AD5686R
+ * AD5672R, AD5676, AD5676R, AD5681R, AD5682R, AD5683, AD5683R,
+ * AD5684, AD5684R, AD5685R, AD5686, AD5686R
  * Digital to analog converters driver
  *
  * Copyright 2018 Analog Devices Inc.
@@ -15,12 +16,27 @@ static int ad5686_spi_write(struct ad5686_state *st,
 			    u8 cmd, u8 addr, u16 val)
 {
 	struct spi_device *spi = to_spi_device(st->dev);
-
-	st->data[0].d32 = cpu_to_be32(AD5686_CMD(cmd) |
-				      AD5686_ADDR(addr) |
-				      val);
-
-	return spi_write(spi, &st->data[0].d8[1], 3);
+	u8 tx_len, *buf;
+
+	switch (st->chip_info->regmap_type) {
+	case AD5683_REGMAP:
+		st->data[0].d32 = cpu_to_be32(AD5686_CMD(cmd) |
+					      AD5683_DATA(val));
+		buf = &st->data[0].d8[1];
+		tx_len = 3;
+		break;
+	case AD5686_REGMAP:
+		st->data[0].d32 = cpu_to_be32(AD5686_CMD(cmd) |
+					      AD5686_ADDR(addr) |
+					      val);
+		buf = &st->data[0].d8[1];
+		tx_len = 3;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return spi_write(spi, buf, tx_len);
 }
 
 static int ad5686_spi_read(struct ad5686_state *st, u8 addr)
@@ -37,9 +53,15 @@ static int ad5686_spi_read(struct ad5686_state *st, u8 addr)
 		},
 	};
 	struct spi_device *spi = to_spi_device(st->dev);
+	u8 cmd = 0;
 	int ret;
 
-	st->data[0].d32 = cpu_to_be32(AD5686_CMD(AD5686_CMD_READBACK_ENABLE) |
+	if (st->chip_info->regmap_type == AD5686_REGMAP)
+		cmd = AD5686_CMD_READBACK_ENABLE;
+	else if (st->chip_info->regmap_type == AD5683_REGMAP)
+		cmd = AD5686_CMD_READBACK_ENABLE_V2;
+
+	st->data[0].d32 = cpu_to_be32(AD5686_CMD(cmd) |
 				      AD5686_ADDR(addr));
 	st->data[1].d32 = cpu_to_be32(AD5686_CMD(AD5686_CMD_NOOP));
 
@@ -67,6 +89,10 @@ static const struct spi_device_id ad5686_spi_id[] = {
 	{"ad5672r", ID_AD5672R},
 	{"ad5676", ID_AD5676},
 	{"ad5676r", ID_AD5676R},
+	{"ad5681r", ID_AD5681R},
+	{"ad5682r", ID_AD5682R},
+	{"ad5683", ID_AD5683},
+	{"ad5683r", ID_AD5683R},
 	{"ad5684", ID_AD5684},
 	{"ad5684r", ID_AD5684R},
 	{"ad5685", ID_AD5685R}, /* Does not exist */
diff --git a/drivers/iio/dac/ad5686.c b/drivers/iio/dac/ad5686.c
index be803e8..1719d51 100644
--- a/drivers/iio/dac/ad5686.c
+++ b/drivers/iio/dac/ad5686.c
@@ -83,6 +83,10 @@ static ssize_t ad5686_write_dac_powerdown(struct iio_dev *indio_dev,
 		st->pwr_down_mask &= ~(0x3 << (chan->channel * 2));
 
 	switch (st->chip_info->regmap_type) {
+	case AD5683_REGMAP:
+		shift = 13;
+		ref_bit_msk = AD5683_REF_BIT_MSK;
+		break;
 	case AD5686_REGMAP:
 		shift = 0;
 		ref_bit_msk = 0;
@@ -254,6 +258,29 @@ static const struct ad5686_chip_info ad5686_chip_info_tbl[] = {
 		.num_channels = 8,
 		.regmap_type = AD5686_REGMAP,
 	},
+	[ID_AD5681R] = {
+		.channels = ad5691r_channels,
+		.int_vref_mv = 2500,
+		.num_channels = 1,
+		.regmap_type = AD5683_REGMAP,
+	},
+	[ID_AD5682R] = {
+		.channels = ad5692r_channels,
+		.int_vref_mv = 2500,
+		.num_channels = 1,
+		.regmap_type = AD5683_REGMAP,
+	},
+	[ID_AD5683] = {
+		.channels = ad5693_channels,
+		.num_channels = 1,
+		.regmap_type = AD5683_REGMAP,
+	},
+	[ID_AD5683R] = {
+		.channels = ad5693_channels,
+		.int_vref_mv = 2500,
+		.num_channels = 1,
+		.regmap_type = AD5683_REGMAP,
+	},
 	[ID_AD5684] = {
 		.channels = ad5684_channels,
 		.num_channels = 4,
@@ -383,6 +410,11 @@ int ad5686_probe(struct device *dev,
 	indio_dev->num_channels = st->chip_info->num_channels;
 
 	switch (st->chip_info->regmap_type) {
+	case AD5683_REGMAP:
+		cmd = AD5686_CMD_CONTROL_REG;
+		ref_bit_msk = AD5683_REF_BIT_MSK;
+		st->use_internal_vref = !voltage_uv;
+		break;
 	case AD5686_REGMAP:
 		cmd = AD5686_CMD_INTERNAL_REFER_SETUP;
 		ref_bit_msk = 0;
diff --git a/drivers/iio/dac/ad5686.h b/drivers/iio/dac/ad5686.h
index 6c6879d..d05cda9 100644
--- a/drivers/iio/dac/ad5686.h
+++ b/drivers/iio/dac/ad5686.h
@@ -13,6 +13,7 @@
 #include <linux/mutex.h>
 #include <linux/kernel.h>
 
+#define AD5683_DATA(x)				((x) << 4)
 #define AD5686_ADDR(x)				((x) << 16)
 #define AD5686_CMD(x)				((x) << 20)
 
@@ -36,6 +37,8 @@
 #define AD5686_LDAC_PWRDN_3STATE		0x3
 
 #define AD5686_CMD_CONTROL_REG			0x4
+#define AD5686_CMD_READBACK_ENABLE_V2		0x5
+#define AD5683_REF_BIT_MSK			BIT(12)
 #define AD5693_REF_BIT_MSK			BIT(12)
 
 /**
@@ -47,6 +50,10 @@ enum ad5686_supported_device_ids {
 	ID_AD5675R,
 	ID_AD5676,
 	ID_AD5676R,
+	ID_AD5681R,
+	ID_AD5682R,
+	ID_AD5683,
+	ID_AD5683R,
 	ID_AD5684,
 	ID_AD5684R,
 	ID_AD5685R,
@@ -64,6 +71,7 @@ enum ad5686_supported_device_ids {
 };
 
 enum ad5686_regmap_type {
+	AD5683_REGMAP,
 	AD5686_REGMAP,
 	AD5693_REGMAP
 };
